A business man packing for a trip glances in his briefcase.

"Honey?"

"Yes, darling?"

"Honey," he says, in mild exasperation, "why do you persist in
putting a condom in my briefcase every time I go on a trip?  You
know I only have eyes for you. I'd never be unfaithful."

"Oh, I know, darling, and I trust you," she replies sweetly,
"It's just that, well you know, with all those terrible diseases
out there, it would make me feel better to know that if anything
did happen, you'd be protected.  So please, darling, take it with
you, won't you? For my sake?"

"Oh, alright, if you put it that way," he relented, "I'll do it
for you. But for Pete's sake, give me more than one!"