Best “Petty Evil” Moment in a Film?

I was rewatching Lethal Weapon 2 and that moment of scenes when the evil South African Drug Dealers were killing Riggs and Murtagh’s colleagues including rigging the bomb on that woman’s diving board and planting a bomb in Murtagh’s Toilet that would have went off once he got off with the message on the toilet paper.

He got me thinking about that… About moments like that in other films including Dick Jones pretape video for Bob Morton in Robocop before Boddicker blew him up