

The loser or one of his friends probably tattled. Most schools have policies similar to this, ostensibly to “prevent it from being brought to school” but in reality because school administrators wish they could exert control over kids’ lives 100% of the time but can’t, and they’re salty about it.

Ah, the old “unauthorized tampering with school computer equipment which Could Cause Irreparable Damage,” but is actually just a tacit admission that whoever is in charge of the computer lab doesn’t have the first clue about what they’re doing.
I had several of those throughout my school career.