Sorry to keep going on about Jack Handey. Well, not really:-
Handey's offbeat humour seems to spring from the same two words that aspiring novelists use when they're still looking at a blank sheet of paper: 'What if?'
'I bet if you were in some old west gang, and you were dragging a guy along the ground with your horse, it'd probably make you really mad to look back and see him reading a magazine.'
Or:
'If you're a young mafia gangster out on your first date, I bet it's really embarrassing if someone tries to kill you.'