I would always get bored, and end up using the cheat to invite everyone in the town to my house. I would then order pizza, and put it in the basement to attract everyone downstairs into my basement. I would then delete the stairs, and do what psychopaths do: watch them urinate all over themselves until they died. And then, naturally, I'd seduce the Grim Reaper and have his baby.
What a psycho.
What's the most evil thing you've ever done to your sims?