Related:

• If you explain so clearly that nobody can misunderstand, somebody will.
  -- Chisholm, Third Law, Corollary 1...
• Chisholm's Third Law Proposals, as understood by the proposer, will be judged otherwise by others.
  Corollary 1: If you explain so clearly that nobody can misunderstand, somebody will....
• Chisholm's Second Corollary: If you explain so clearly that nobody can misunderstand, somebody will.
• If you explain so clearly that nobody can misunderstand, somebody will.
• If you explain something so clearly that no one can possibly misunderstand, someone will.
• 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.
• No one you ask to help find a mistake will see it. -- Finagle's Third Law, Corollary 1