a joke came to my head... :)
Gambit's sittin’ in a bar after a long day. A stranger hails him:- Hey, dude! Wanna play some cards? * reaches out a card pack*
- Sorry, my friend, I haven’t played for ages. *takes the pack in left hand and weighs it* Oh, there’s missing one card here. * shifts the pack to his other hand* …the seven of spades.