Related:

• The wise open their minds, but a fool opens his mouth.
• An angry man opens his mouth and shuts up his eyes. -- Cato
• When Al Gore opens his mouth, the barometric pressure drops.
• When Bill Clinton opens his mouth, the barometric pressure drops.
• Bart: Dad, do I have to brush my teeth? Homer: No, but at least rinse your mouth out with soda.
  [Bart opens a can and gargles with it] -- Only three cavities?...
• A bore is a fellow who opens his mouth and puts his feats in it. -- Henry Ford
• A secret in his mouth, Is like a wild bird put into a cage
  Whose door no sooner opens, but 'tis out. -- Johnso...
• A closed mouth gathers no feet.