Related:

• Think twice before speaking, but don't say "think think click click".
• Think twice before speaking. But don't say "think think click click".
• I always think twice before I say something stupid. --Loesje Televisio
• I'll have to think twice before I give it a second thought.
• Bob: [high-pitched] All Springfield trembles before the might of Sideshow Bob!
  Blasted helium! Shoo...shoo...shoo. [normal voice] Ha ha, that's better!...
• It might be a good idea to think twice before jumping in bed with a lady ventriloquist.
  Think about it: there she is; there you are; and just as you're zeroing on target, it laughs at you....
• Think before you think! -- Stanislaw Lem