While some rules in life are set in stone, in Ireland there are millions, yes millions, of 'tiny no-nos'.
They're the things that someone does that raises eyebrows or that they will never be forgotten for whether that's mixing blackcurrant with Guinness or the ULTIMATE Irish no-no, saying no to a cuppa.
Comedian Bernard O'Shea has been putting a lot of thought into these tiny no-nos, and he joined Dermot and Dave with the biggest and most controversial ones.
You can catch all the craic by clicking play below
