I will let them off this time - they are normally very good. The guy isn't the mechanic, he normally does the advertising, manages the database, catalogues parts, etc. He doesn't work on the engines, but does salesman stuff when very busy.
He coped it big time from the mechanics a few months ago as he fueled and oiled a new mower, then started it and let the recoil snap back from fully extended. really set the mechanics off.
The mechanics are knowledgeable and nice.