It might seem stupid, but usually it's deserved! Check out these 25 times people took revenge over petty things.
I once had a colleague I hated (he was very condescending and really arrogant), so I put an extra Bluetooth receiver in his computer for a computer mouse and kept the mouse in my drawer. I would just open my drawer and it would f--- his s--- right up. Kept it going for like 2 months. He was about to murder the world when I thought I better stop Source