Sarah comes to the rabbi and complains:
- Rebbe, tell me what to do, my husband is always cheating on me!
The rabbi thought for a moment and said:
- When your husband is sleeping, carefully pull 2 hairs out of his beard and put them in his soup the next day!
Sarah asks incredulously:
- And what, do you think this will help?
The rabbi replies:
- It won't hurt!