A deaf mute walks into a pharmacy to buy condoms. He has difficulty communicating with pharmacist, and cannot see condoms on the shelf. Frustrated, the deaf-mute finally unzips his pants, places his dick on the counter, and puts down a five-dollar bill next to it.
The pharmacist unzips his pants, does the same as the deaf-mute, and then picks up both bills and stuffs them in his pocket.
Exasperated, the deaf mute begins to curse the pharmacist wildly in sign language.
"Look," the pharmacist says, "if you can't afford to lose, you shouldn't bet."