They say if you want an honest answer, ask a kid, and that's exactly what the teacher of 11-year-old Ava Cross did — and now may regret.

When asked what the teacher could do better, she specifically went after her teacher's use of "collective" (class-wide) punishment and backed it up with historical data.

"Not use collective punishment as it is not fair on the many people who did nothing and under the 1949 Geneva Conventions it is a war crime," she wrote.

Her dad, writer Mason Cross, explained that while his daughter loves her teacher, she's just too smart for her age — and her own good.

Regardless of war crime accusations, Twitter was firmly in the "give the girl ice cream" camp.

There were those who were concerned she was actually going to get grounded.

But no worries...

...only ice cream.

Of course, Ava isn't the first student to use homework as a way to express frustrations with the teacher.

This student was asked to describe a time they felt angry. The answer? When they had homework, of course.

Here's another one:

Whoops. Looks like the teacher didn't quite think that one through.

Uhhh...

I have to assume this is some kind of typo, but I love the student's answer. If you're not motivated by rocks, you probably shouldn't be a geologist.

This student did not hold back.

And honestly? I don't really blame them. I think they've made some very salient points here.

Even the parents aren't safe from homework.

If I ever get homework as a parent, I hope I'm bold enough to answer the questions as flippantly as this dad did. He's kinda my hero.

Caution! Salty language ahead!

As someone who's worked with kids, I'm gonna let you in on a secret: Your teacher probably noticed. They just didn't really care.

Not everyone is afraid of bugs.

That is an excellent bored expression. This kid is an artist.

Here's a brutally honest "appreciation note" for another teacher:

Hey, as long as you admit your mistakes sometimes, you're miles ahead of people who never admit them ever.

"Label your axes."

Hey, the axes are labeled. What more do you want?

A passive-aggressive method of showing your work:

You know Jeff is serious because of the amount of time it took to craft this assignment. Don't mess with Jeff.