Related:

• Finagle's Third Law In any collection of data, the figure most obviously correct, beyond all need of checking, is the mistake.
  Corollary 1: No one whom you ask for help will see it....
• No one you ask to help find a mistake will see it. -- Finagle's Third Law, Corollary 1
• In any collection of data, the figure most obviously correct, beyond all need of checking, is the mistake -- Finagle's Third Law (1) Nobody whom you ask for help will see it.
  (2) The first person who stops by, whose advice you really don't want to hear, will see it immediately....
• Finagle's Third Law: In any collection of data, the figure most obviously correct, beyond all need of checking, is the mistake Corollarie
  (1) Nobody whom you ask for help will see it....
• Finagle's third Law: In any collection of data, the figure most obviously correct, beyond all need of checking, is the mistake.
  Corollaries: (1) Nobody whom you ask for help will see it....
• If you are sure what you do will meet with everyone's approval, somebody won't like it.
  -- Chisholm, Third Law, Corollary 2...
• Chisolm's Third Law, Corollary 2: If you do something which you are sure will meet with everyone's approval, somebody won't like it.