Related:

• There are some people that, if they don't know, you can't tell them.
  You can tell a teacher as far as you can see one, but you can't tell them much....
• You can always tell a liberal but not much.
• Captain, how soon can we land?" "I can't tell." "You can tell me; I'm a doctor." -- Airplane!
• So live that you can look any man in the eye and tell him to go to hell.
• Fine day to throw a party. Throw him as far as you can.