I got a book when I was in the Navy called 'Murphy's Law and it Corollaries'
Flanagan's Finagiling Factor= The number when multiplied by the number you got, gives you the number you should have got.
Murphy's Law of Selective Gravity= Any object dropped will gravitate to the nearest small hole from which it can't be retrieved. Also, buttered bread falls buttered side down.
O'Toole's Commentary on Murphy's Law= Murphy was an optimist.
It was a whole book of these. It was a side splitter.