Beverly and Bonnie (blondes of course) were doing some carpentry work on a
house. Beverly, who was nailing on vinyl siding, would reach into her nail
pouch, pull out a nail and either toss it over her shoulder or nail it
in.
Bonnie, figuring this was worth looking into, asked, "Why are you
throwing
those nails away?" Beverly 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."
Bonnie got completely upset and yelled, "You moron! Those nails aren't
defective! They're for the other side of the house!"