Be My Valentine – Level 2

A man goes into a post office one day. A middle-aged bald man is standing at the counter. He is sticking stamps on bright pink envelopes with hearts all over them. He also sprays the envelopes with perfume.
The man goes to the bald man and asks him,
“What are you doing?”
“I’m sending out 1,000 Valentine cards. They’re signed, ‘Guess who?'”
“But why?”
“I’m a divorce lawyer.”