Lynn & Judy 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 & either toss it over her shoulder or nail it in.

Judy, 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 have the head on the wrong end & I throw them away.'

Judy got completely upset & yelled, 'You moron! Those nails aren't defective! They're for the other side of the house!'