Only once?? You're so lucky.
I went camping once, and I woke up with bites all over my legs...looked like I had chicken pox or something. No one would sit next to me because they all thought I had the West Nile. Ever since then I've always worn jeans and long sleeves, so the only part of me exposed is my head. It didn't work. As you already know, I got my lip bitten u.u