I have, though not intentionally. Here is my sort of funny story. When I was in high school, nose jobs were all the rage. My dad had one (I liked his original nose better - it was more manly). His wife had one. My best friend was scheduled to have one, and she didn't want to do it alone, so, being the good friend that I was, I asked my dad to take me for a consult. Well, that was enough for me to know that I wanted no part of it whatsoever. My friend had her surgery and it came out nice, although she had looked fine before too.
A year went by and I was involved in a car crash. I was fine, but one small part of me wasn't - you guessed it, my nose. What had before been a nice to have became a necessity. Either that or get used to my nose being over on one side of my face. So I waited the requisite month for the break to heal and had the corrective surgery, along with a few minor tweaks. I guess I made the right decision when I didn't have the original surgery, or else this would have been my second surgery, and the first would have been ruined when my face met the steering wheel (me bad - no seat belt).
In general, I do not feel that cosmetic surgery is worth the risks, which include death. Also, many people believe that they will feel differently (better about themselves) afterward when often they don't, and then they become depressed.
What do you think?