I'm almost unsquickable, but I have a very specific one... anything to do with stretched lobes. First, I find them unattractive (no offense to anyone who has them, just my personal taste, I'm not really into any sort of piercings). But then I was reading the other day about how they apparently smell terrible, and looking at pictures of people who stretched them too far and ended up tearing their ears apart, and I just... couldn't take it. I guess that while some people are super sensitive about eye/finger torture, I'm a wuss about earlobe torture.