two blondes

Carol and Donna, were doing some carpentry work on a
>> > Habitat for Humanity house.
>> >
>> > Carol, 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.
>> >
>> > Donna, figuring this was worth looking into, asked,
>> > "Why are you throwing those nails away?"
>> >
>> > Carol 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."
>> >
>> > Donna got completely upset and yelled, "You moron!
>> > Those nails aren't defective!
>> >
>> > They're for the other side of the house!"