Roger patted the girl on the shoulder in turn: "The most important thing to be a man is to have a dream." Pen "Fun" Pavilion www.biquge.info"

Hermione flipped the table: "Ghost dreams!!Your family dreams all day long that the toilet doesn't splash!?"

"What's so contemptible about that?" the boy kept a smile on his lips, "People are going to, aren't they? Once upon a time, you sat on a soft and comfortable toilet seat and felt a thousand miles of pleasure, only to be interrupted by a little splash of cold liquid?"

"is not low-level, eating is low-level. This is a problem that cannot be avoided or ignored in the history of human development. ”

"......" Hermione felt speechless.

And the other few people don't have any desire to speak at all, no one will be Roger's opponent in terms of mouth cannons, they have long understood this, it is all indirect convulsions of this thing, and the forbearance is over...

"Since there is no objection, let's start proposing solutions now..."Roger waited for dozens of seconds, and several friends still didn't have any intention of speaking.

"In that case, I'd like to show you the results of yesterday's research. He waved his wand without embarrassment, and several rows of text appeared on the small blackboard:

[The poop leaves the buttocks and stands up before it reaches the water.] 】

[Press your hips into the water so you don't splash.] 】

[Make the toilet dozens of meters deep, so that it can't splash.] 】

[Stain your buttocks in advance.] 】

[Scoop out the water from the toilet bowl first, and then pour the water into it after pulling it.] 】

[1. Eat a bad stomach and make sure that you have diarrhea before going to poop. 2. Since it is diluted, you can use a glass rod to drain it. Reference: "Junior High School Chemistry"]

[Catch it with your hand first, then take it and put it in the water.] 】

[Go to the toilet and throw some paper in the toilet.] 】

Hermione: "......"

Harry: "......"

Others: "......"

Facing the little friend who was completely suppressed by his brain circuits, Roger flipped the small blackboard to reveal the text behind it, and began to talk eloquently again: "But these indicators are not cure, let's use a scientific way to solve this problem..."

"For example, when pulling, the hips will shake back and forth evenly, and the stool will move like a pendulum, and the moment it falls, the stool accelerates along the parabolic trajectory.

y=ax^2+bx+c(a!=0); y^2=2px

The focal point of the parabola is on the positive semi-axis of x, the focal coordinates are (p/2,0), and the alignment equation is x=-p/2

Since the focal point of the parabola can be in any half axis, there is a standard equation y^2=2px y^2=-2px x^2=2py x^2=-2py

The stool will enter the water at the angle you calculated, and you can also calculate the size and speed of the force.

Horizontal displacement: x= vo t horizontal velocity: vx = vo

Vertical displacement: y = g t2 vertical velocity: vy = g t

tgq = Vy = Votgq Vo =Vyctgq

V = Vo = Vcosq Vy = Vsinq

Momentum and impulse: Momentum: P = mV Impulse: I = F t

In this way, a set of scientific and systematic methods can be developed according to the different situations of each person, so as to avoid letting the splash stain the buttocks when sitting on the toilet to defecate. As long as you enter the water at an angle, it can be effectively avoided and can also work the glute muscles. ”

After finishing the words like a book from heaven, Hermione got up, and stopped talking in her mouth, even the table had been lifted before.

Eventually, the furious words turned into deep sighs.

"Okay, now that there are so many solutions, let's change the topic..."The girl said helplessly, "For example... Drinking?"

Roger swore he saw a mosquito coil ring in Miss Jack-of-all-trades!

After all, no matter how smart Hermione was, the level of knowledge she had just graduated from elementary school was not enough to support her to understand what Roger was talking about.

But it's good to be dizzy, and only when you're dizzy can you have a chance to show your real minions...

"The Great Enemy... No, how can you covet the contents of the cup in front of such a serious question!" Roger said righteously, "Come, now let me teach you how to bring in your own data package..."

As soon as these words came out, Harry covered his ass and said sweaty, "No, no... We have fully understood that this is indeed a brilliant solution..."

"Do you really understand?" asked Roger.

Harry replied in the affirmative, "Totally understood." ”

Roger: "Don't force it. ”

Harry said categorically, "Not at all. ”

Smacking his lips, Roger turned around to erase the various symbols on the small blackboard, and the little savior took the opportunity to wipe the sweat on his face and whispered: "I said that this product didn't cheat people today, it turned out that the idea was hit on our chrysanthemums... It's good that I'm smart..."

Ginny and Neville nodded approvingly.

Pushing the wiped blackboard aside, Roger sat down: "The main problem has been solved, let's talk about the less important problem..."

Ginny intentionally or unintentionally protected her ass and cautiously asked, "What's the problem?"

Seeing the appearance of the little girl, Roger secretly felt a gimpant in his heart, but said lightly on the surface: "Our illegal study group has received a year of professional tutoring from Professor Lupin, and everyone here has made great progress and improved their strength..."

"But even if it's theoretical, you can't forget it if you don't use it for a long time, let alone use magic for your own safety, so I think our main goal this year should be to consolidate and practice. ”

"Practice?" Neville still seemed a little unconfident: "How to practice..."

"Of course it's a combat test," Roger said as a matter of course.

"Wait—" Hermione seemed to realize that something was wrong, and stopped her.

The boy's inquiring gaze glanced over her ass intentionally or not.

Hermione felt her chrysanthemum tighten, and suddenly stopped talking.

That's where the previous nonsense comes in.

Roger continued, "According to what I mean, it's a team of six of us who go to the Forbidden Forest every Friday night..."

"Forbidden Forest!?" Neville exclaimed, then reacted, "No, I mean, it has some of the most dangerous plants in England: dragon's claw vine and thorn tree..."

"And the largest tribe of centaurs in England, and even rumored to have werewolves in it... The Forbidden Forest is too dangerous. Hermione picked up and frowned in rejection.

"The main purpose of going to the Forbidden Forest is to exercise your actual combat level, and I am your nanny in the real sense..."Roger tilted his head and smiled, looking at the girl and smiling: "Moreover, don't you understand if others don't understand? I can protect your little life." ”

This sentence is pure bragging. Not to mention anything else, if the centaur tribe is dispatched, Roger has a way to slaughter all the centaurs, but to say that he can protect the lives of five rookies in the siege of the centaurs...

Hehe... It is better to believe in Him than in God.