I'm not sure if this should really be a topic for this forum but I'm sure there are some of you out there that can at least advise me on next step. Visited my dad today (79 yrs old) and went with him to pick up his 10 year old Toro rear engine mower at the repair shop. He had already spent over $600 with this guy for repairs in the past month and still had problems. This time they were replacing the carb for about $100+. By the way, We would already be taking care of his lawn on a regular basis except for the fact that he lives about 80 miles away and still loves to take care of his own lawn. As it is we usually end up doing it anyway. Walked into the shop and had the owner start talking about how he had made a mistake and stood the mower up overnight and forgot to take the battery out.??? The engine (12 HP B&S)looked like it had sat in battery acid for hours. Rust already starting to form on it. He said that he had neutralized the acid (Right!!!!) and everything seemed to work O.K. I about hit the roof and told him how I felt about the stupid mistake. I also insisted we leave the mower with him and insisted that he remove the cover and check the engine throughly. What would you expect someone to do in this case? Is this engine damaged really badly? How far should I try to push this guy? My dad is a real easy going fellow and I believe the shop is pushing him around. I have a pretty bad temper and don't want to screw things up too much. He seems to really love this old unit and just didn't want to talk about a new one. (Wish I had insisted now). Just need some advise. Thanks, Cleve.