This is by Cynthia MacGregor, an inveterate punster. She should write more of these groaners.

The Mafia don did a good job of hiding his mob affiliation and giving the appearance of being an ordinary fellow. He had just one peculiarity: Since he couldn’t stand a cold nose, he wore a knitted nose-warmer in chilly weather.

When the FBI at last picked him up, he was amazed and asked, “How did you know?”

“We could tell.”

“How?”

“Your cozy nostril.”