prone to violence

There's a bully in Zoey's preschool class. That's a long story.
Today when she got in the car after school Zoey said, "Megan pinched me and Peyton today."

M: Oh, dear. Not again! I think it's best if you don't play with her anymore.

Z: Yeah, and I think she should be put in jail for hurting me and my friends.

M: Jail? That would be sad to have a little girl your age in jail.

Z: It would? Then I guess we could just throw her out the window.

Admittedly, I laughed for several minutes, which probably is not an appropriate response, but I couldn't help it. Even now, when I recall her saying it so matter-of-factly, it makes me laugh.