**Update!**
A couple of weeks ago, I decided to talk to my dad about not wearing clothes. I wasn't quite able to bring up the whole "i've been doing it secretly for the last five years" bit, but I was able to give him my argument for it and let him know to see if it was ok. As it turns out, I have a weird auto-immune disorder that is brought on by stress, which can be reduced by not wearing clothes

so, he was ok with it as long as I keep it in the basement, which is where I sleep sometimes and I can pretty much live down there, and occasionally sneak outside at night

anyway, I guess that means I'll have to change my vote, and to those of you out there who haven't talked to you're family about it, I hope you find the courage or they come to the level of understanding required to deal with it.
-alex