I'm sure I poasted this before, but I can't find it. So here it is (again). BD6 and DM will like this.
A computer programmer's wife sends her husband to the store.
She says, "Buy a loaf of bread. If they have eggs, get a dozen."
An hour later, he returns home with twelve loaves of bread. She asks, "Why did you get twelve loaves of bread?"
Her husband replies, "Because they had eggs.”