Next they will be expelling them for just thinking about an arrow,.
Check this out:

Yet more evidence that schools go to extreme lengths to punish children for even thinking about weapons: A 10-year-old Georgia boy was suspended for a day after he pretended to shoot an entirely imaginary arrow at another student.

Administrators told the boy’s parents that he could even be expelled.

Johnny Jones is a fifth grader at South Eastern Middle School. A few weeks ago, he was walking back to his desk when a friend aimed a folder at him and shot it like a gun. Jones retaliated by pulling back his arm as if releasing an arrow from an invisible bow. Whether either of the imaginary projectiles hit their target is unknown, since neither actually existed.