It's wrong to give someone else's contact info without permission.
Bob is talking to someone who is looking to contact his wife.
Bob wants to be kind to the person on the other end of the line.
Bob asks his wife if she wants to give out her phone number.
Bob gives his wife's phone number to the person.
"Bob's wife says ""Yes"" and accepts full responsibility for what happens."
The person calls Bob's wife and harasses her, making her angry.