Naw, you'd be surprised. When I was a pierced lil youngin, the balls of my jewelery would actually really easily somehow become loose and fall out, especially if I'd been playing with them or if it was enflamed. And with septums, boogers get stuck on their, and sometimes they lose their grip. o_o I've also had plugs fall out before, but that was as I was stretching them, or if I had temporarily put different ones in that were bigger or smaller, they had a tendency to fall out.
Tattoos, it makes sense, a lot of customers frown upon tattoos, my tattoo however, is beautiful.....so my managers don't have trouble with it often. Hahaha. :X I always have it covered up though, its high up on my forearm. But if i'm getting down and dirty, those sleeves are coming up, and I really don't give a **** that my tattoo is out.
As far as hair goes, I don't have any facially, this would be because I am a woman. But my hair is always below my shoulders. I feel like this is a toss up, because only one side of my hair is below my shoulders. I don't think my manager feels comfortable saying "Can you put uh.....the right side of your hair back?"