 Yeah, life is interesting. I had a best friend who was a 9-11 victim. That was extremely difficult. That was a tough challenge and sent me into a crosswind personally for a while. But I think on a business scenario, I can't pick out any one thing. I think the persistence, and people say that and you throw that word around, but the persistence that it takes, and sometimes you hit real, real lows. Being an entrepreneur, what I tell people is the highs can be really high, but the lows are much lower than you'd expect.