Two blondes with hammers, Debbie and Kimberly, were doing some carpentry
work on a Habitat for Humanity house.

Debbie, who was nailing down house siding, would reach into her nail pouch,
pull out a nail, and either toss it over her shoulder or nail it in.

Kimberly, figuring this was worth looking into, asked: "Debbie, why are you
throwing those nails away?"

Debbie explained, "When I pull a nail out of my pouch, about half of them
have the head on the wrong end, and I throw them away."

Kimberly became extremely upset and yelled, "Debbie, you're a real moron!
Those nails aren't defective! They're for the other side of the house."

~~ Invented by Blondes (Probably Male) ~~