From my “Murphy’s Law” desk calendar archives thanks to Aunt Evelyn, Uncle Pipey, and cousin Nancy:

The Poker Principle: Never do card tricks for the group you play poker with.

Goofy guy’s adaptation of The Poker Principle: After the penny-ante poker games in the mid-60’s and one disastrous night of big losses with my friend, Jim Hileman, i have sworn off poker even though i am very bad at card tricks.