Gaffe, oh yeah! I can identify with that in so many ways!
Wearing evening dress to a social do when everyone else was in casual clothes?
Wearing casual attire when everyone else was dripping in furs and diamonds?
Smoking roll ups at a posh dinner party?
Demanding to know why a brandy snifter glass wasn’t filled to the brim?
Best has to be my Dad at a firm’s dinner taking part in the beauty contest because he thought it was a joke (he didn’t win).
This has a part two as the guy who was best man at my first wedding attended said dinner and spoke of some idiot taking part. He then had to meet my Dad to discuss the wedding.