Have you known anyone willing to experience pain for vanity’s sake? Did the outcome justify the means?

I have known people who have experienced pain for vanity, but it wasn't always worth it.
One easy example is tattoos. I know many people who have permanent tattoos, and they regret it after a few months, because it changes their position in society greatly, while the needle hurts a lot.
Another good example is when a girl will go out with someone they don't love, just so that they can brag to their friends about having a boyfriend. I've known many people who have done this, and they think its cool at the start, but end up being driven to tears.