Some things are just less stress than others, I really enjoyed running a detail shop: customers were always happy and if it went bad after detailing they didn't come and blame us, they didn't bring you the car to get detailed if they didn't have the money. In the repair industry it always catches people by surprise, most never plan for a breakdown so they don't have the money to pay and begg you to take payments or don't pay for months blame you when the transmission goes out after you put in a new tailight... that part can get real old real fast but I do love working on cars (except fords)