Hubbard's Law: Don't take life too seriously; you won't get out of it alive.
Hurewitz's Memory Principle: The chance of forgetting something is directly proportional to...to... uh...
IBM Project Management Axiom: Need for project modifications increases proportionally to project completion.
Instruction Booklet Governing Principle: Instruction booklets are lost by the Goods Delivery Service. If not, they are listed in four languages: Japanese, Thai, Swahili, and Mongol.
Jenkinson's Law: It won't work.
Johnson-Laird's Law: Toothache tends to start on Saturday night.