Cut off my dog's tail
Bert took his Saint Bernard to the vet(兽医).
"Doctor," he said sadly, "I'm afraid I'm going to have to ask you to cut
off my dog's tail."
The vet stepped back, "Bert, why should I do such a terrible thing?"
"Because my mother-in-law's arriving tomorrow, and I don't want anything to
make her think she's welcome."