"Inoculations"

A client brought a litter of puppies
to my veterinary clinic for inoculations and worming.

As the look-alike pups squirmed over and under one
another in their box, I realized it would be difficult to
tell the treated ones from the rest. So, I turned on
the water faucet, wet my fingers, and moistened
each dog's head when I had finished.

After the fourth puppy, I noticed my talkative client
had grown silent. As I sprinkled the last pup's head,
the woman leaned forward and whispered,

"I didn't know they had to be baptized, too."