My brother was suspended from school for a week in elementary school for something similar. He was digging in the dirt with a stick while he was out on the bathroom break and a teacher approached him. After being asked what he was doing, he jokingly answered that he was burying a bomb. With twig with was drawing pictures in the dirt with. He didn't get into any trouble for that (with our parents).
![[Image: SigBarSping_zpscd7e35e1.png]](https://images.weserv.nl/?url=i169.photobucket.com%2Falbums%2Fu224%2FUchiha_Kina%2FTags%2FSigBarSping_zpscd7e35e1.png)