When forced to play Euro auction games, pretend you have Tourettes. During the bidding yell out a random word or phase such as "Holy jump-a-mum-mum" or "underpants" or, if you prefer, words that cause your e-mail to be intercepted and quarantined by corporate IT security.
When forced to play a game with one of these, suddenly say, "Oh. I have to remember to pick up C batteries on the way home." Then write yourself a note so you don't forget.
When forced to play Leonardo da Vinci, carefully study the backs of the cards throughout the game.
and have a Happy Halloween.