My favourite FKW experience involved a holiday to Puerto Banus about 15 years ago, Newcastle to
Malaga flight in rocks a whole family of FKW, Nan, Grandad, Mum, Dad, a boy and his younger sister all resplendent in their Sunderland away kit including pulled up socks in the Grandad's case (it was the light blue Sunderland away kit Reg Vardy) they all had McGuiness on the back but no numbers...anyway as great as this was it was trumped by the return flight when the same family, could tell it was them because they had the same names on the back, turned up all dressed in the corresponding home kit, this time grandad followed family convention and rolled his socks down.
Away kit because they were going away, home kit for coming home, the infallible logic of the family FKW.
Another of my favourite FKW was at the Monaco GP and all of those that came dressed as pit crew, one or two complete with headsets....grown men.