I am a little late with updating, but thought I should share this. A a goodbye gift, Kevin and I left several goodbye pranks from two roommates. I think they enjoyed it. Zip tie chairs together, mess with the screen/display cable and mess with chair settings.
Zip tie everything, especially the scissors. That way they cant actually cut them off. Block keys on the keyboard or the mouse.
Of course, put Rose tea in there papers so they smell fresh and flowerly.