One day a boss said to her employees, "I can fight and beat any man who works here."
A new employee, a seven-foot-tall ex-prize fighter, stood up to take on the boss.
The boss kept her word, but did not beat the man or back down.
What did the boss do?
A man came to visit at a convent while the superior mother was out of town. He left before she returned, and was careful to leave nothing behind. The nuns said nothing about his visit, so how did the superior mother figure out that a man had been there?