[Toksin]

Sorry mate, but what happened to your room was fucking hilarious. Don't you lock your rooms?

Anyways..revenge...

Is there a PA? Or a message board? Put up a sign saying "XXX your vibrators have been found, please collect them etc etc" or a sign saying they've been stolen.

OR

Coat EVERYTHING, EVERY SINGLE LITTLE THING in their ENTIRE ROOMS in shrinkwrap.