I LOVE Life of Brian.
But there's this one old Monty Python sketch that always makes me grin when I think of it, and that tends to be often. It's very like something from Far Side (which I also love), but even so, I'm not sure why it has stuck with me like it has.
There're these two old ladies watching TV. On top of the TV is a glowing plastic penguin, and the two of them start arguing over why it's there. Then, inexplicably, it explodes. One of the ladies jumps and yells, "PEANUT BUTTER!"
"Why'd you say that?"
"I panicked!"