Two Blonds With Hammers... Lynn and Julie were doing some carpenter work on a Habitat for Humanity house. Lynn 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. Julie, figuring this was worth looking into, asked, "Why are you throwing those nails away?" Lynn explained, "When I pull a nail out of my pouch, about half of them are defective and have the head on the wrong end and I throw them away." Julie got completel…