Related:

• If brains were water, hers wouldn't be enough to baptize a flea.
• If brains were gasoline, he wouldn't have enough to drive a dinky.
• If brains were dynamite, she wouldn't have enough to blow her nose.
• If brains were bird droppings, he'd have a clean cage.
• I wish I were in the land of cotton - not polyester.
• HE: Let's end it all, bequeathin' our brains to science.
  SHE: What?? Science got enough trouble with their OWN brains. -- Walt Kelley...