Did Dad forget that a boy at puberty is hard-wired to be aroused by the naked female form — even sometimes if it's his mother or sister? Maybe they don't realize the effect it has on you.
Gregg, 21, Los Angeles: Haha, this sounds like my dad's dream family! We aren't prudes and don't have a problem with nudity around our mom and other females, but we started locking our door because our dad would think nothing of walking in on us when we were undressed.
He always walked around nude, even in the backyard.