Related:

• If brains were cotton, he wouldn't have enough to Kotex a flea.
• If brains were gasoline, he wouldn't have enough to drive a dinky.
• There is a little bird in the cage.
• Democrats buy most of the books that have been banned somewhere.
  Republicans form censorship committees and read them as a group....
• If brains were dynamite, she wouldn't have enough to blow her nose.
• As happy as if he had brains.
• Once there was a marine biologist who loved dolphins.
  He spent his time trying to feed and protect his beloved creatures of the sea....
• Vet: Your dog's condition has been upgraded from stable to frisky, [SLH walks out with his hind legs in a cast on rollers] and he's free to go.
  His legs should be as good as new in a few months, but in the meantime he'll have to use the wheelabout....
• Not Hercules could have knock'd out his brains, for he had none. -- William Shakespeare