As a wee gossun', no road trip was complete without Irish reg plates becoming a game. If you weren't playing "yellow reg" who where ya? The other game, mostly untitled, was guess the county from which the vehicle hailed from. Basically, you'd be left with bruises on your arm and wearing a dunce hat for the rest of the trip if you couldn't get your head around either game.
Test your knowledge, and flinch, with the Irish reg quiz:
Who's in the mood to play "yellow reg"?