Bob told his friend

Bob told his friend, “My wife caught a Peeping Tom last night, and she’d have killed him if we hadn’t stopped her.”

“It must have made her very angry, him peeking at her, huh?” asked his friend.

“No,” said Bob.

“That’s not what made her the maddest.”

“It’s not?”

“No,” said Bob.

“She got mad when he reached in the window and closed the curtains.”