Dear D&P: My brother-in-law is cheating on my sister

My hairdresser let slip about seeing a “wonderful man”, who just happens to be married to my sister, but she did not know this. What should I do?

Denise says

: Wow, he sounds like a catch! I really loathe people who are in relationships and cheating, all those vows forgotten. I would pull him aside and tell him you know what he is up to, and if he does not pull his head - and other things - in, you will take her hairdresser shears and give him a very short back and sides!

Pebbles says

: Majorly awkward. Maybe tell your sister that it's a rumour you've heard? Such a bad situation if it's true. Especially if she's a good hairdresser. They're hard to find.