A man pulls up at the clinic, leaving his wife and kids in the car, and races inside. "We're leaving on vacation, and my wife says I need to be vasectomised immediately!" The doctor is surprised, but makes the guy happy. Snip, snip and it's done. So the guy shuffles back to the car and gingerly lowers himself back into the driver's seat.
"So," asks his wife, "are you vaccinated, then?"
