Yes I've heard tattoos aren't a big deal as long as they aren't offensive or what not and I could also just wear long sleeves I guess. I really don't want to take out my Monroe. I mean let it close up. Could I wear a retainer with that also? And another thing is I have dark purple hair. Would they make me change it? I read that they don't care about your hair color I read a comment that one girl knew a nurse with all different colored hair like a rainbow and they didn't care so I'm not too worried but still wondering.