2? When that happened in Primary school, it was this kid who always took the textas I wanted.
Eventually, I pissed her off until she kept the textas all session, naturally though, when packing up you would put your stuff back in your case.
And then I shouted shes a thief for taking them.
It was an accidental set up but my 6 y.o. was petty enough to take advantage of it.
The result was that she started crying how shes not a thief and all the other vicious 6 year olds chanted thief, thief.
Fun times.