Mark,People always ask me why I don't wrench for a living. ^^^ That is exactly why. ^^^ Most. if not all, of my 'professional' mechanic friends can't stand working on their own projects. The old saying is 'the shoemaker's kids go barefoot'.
I think it's rare when people can work full time on customers rides and hope to accomplish work on their own vehicles with enthusiasm. When I was much younger I worked as an apprentice mechanic for a Porsche- Audi dealership and a BMW Mazda dealer for a short time. After working all day and commuting back and forth, I realized that it wasn't something that I wanted to do as a fulltime profession. As much as I enjoy working on my own car, it kind of sapped the enthusiasm out of me.
No offense to the guys that are professional mechanics .