2. Fallout 3 The Reverse-Pickpocket Grenade
Ok, so this ones kind of a cheat. Technically theres a trophy available for pulling off this feat, but the origins of that trophy are grounded in the sort of limitlessly awful imagination reserved for gaming completists and the criminally insane. In the original Fallouts, players realised very quickly that you could kill people very easily if you just took advantage of a glitch which allowed you to put a grenade on their person, something which allowed you to see off irritating characters and thieves without ever raising suspicion, despite the myriad of exploded corpses in your wake. Yet at the time this was a hidden glitch of awesomeness, so when people read the trophy/achievement lists of Fallout 3 and found out you could do this, much restraint was retained by all. Ha! Just kidding of course, what actually happened was like giving a kid the keys to a candy store made out of chainsaws. People found endless enjoyment in the slaughter, re-enacting what must be classed as extreme trolling in the Capital Wasteland, as the citizens of settlements like Rivet City and Megaton fell sick with a bad case of the explosions. The sad fact is that it never, ever, ever, ever got old and gave you something to do with landmines, which were a lot like the red-headed stepchild of the Fallout inventory.