I do everything myself but I'm mechanically inclined and enjoy stuff like that. I know guys who probably have the IQ of a genius but couldn't put a round peg in a round hole and are too scared to even try. They would rather pay someone else to do it. They would call their insurance company to send someone out to put a spare wheel on when they have a flat tire on the side of the road and wait three hours instead of doing it in 10 minutes.