Bully

Bully is an animated short about a bully, and a kid who was significantly more smaller than him. The setting is in a class room of some sort and there's a kid just drawing minding his business, and in the right side of him was a kid that was up to no good. While the kid was drawing, the bully tried bothering the kid by throwing things at him, knocking over his pencils, and throwing  down his stuff, but the kid would just ignore him. The kid's breaking point was when the bully physically ruined his drawing. At that point the little kid stands up for himself surprisingly destroys the bully. Shows that you should be careful who you mess with and what you do to that person.