Oh dude, you’d love what goes on here… I walk in one day to some POS computer that was giving us issues, I open up the side and my boss printed out a giant troll face and put it on the inside. :rofl
I printed out a tiny one and covered his optics on his mouse before I left for the night…
Also put a troll face in the toilet and proceeded to use clear scotch tape very stealthly in the back to hold the toilet seat down 
rofl