The other friend:

A friend told me this story:
He stands with his dog in a veterinary clinic, and in front of him stands a woman with a cat, whose name was Lexus. And then a nurse appears from the office and says:"Who has Lexus?" A man stands up and says:"I have". The nurse’s response killed me: "Please go for castration".

Sorry my French, but your friend is a naughty puzzle, this story has been on the internet for so many years.