Anyone who's worked in customer service knows that abuse is inevitable, but boundaries are even more easily breached when you work in the beauty industry. It's ironic that the people who treat some of our most delicate private parts -- heck, there are places on your body that only God and your waxer will ever see -- sometimes get brutal treatment in return. We asked beauty industry professionals -- facialists, waxers, hairstylists, massage therapists, makeup artists -- to spill some of their worst and most hilarious client experiences. Read on for the "WTF?" moments they shared.