This reminds me of another funny story. My younger brother worked for that shop in my photo. His job was to unpack new bikes and set them up before they were placed in the showroom. In 1977 I bought one of the first 1978 Yamaha SR500 models to hit the U.S. shores ($1,498). When my brother found out that I would be buying the bike, he decided to do me a favor and added an extra quart of oil to the remote oil tank (fortunately the engine had a dry sump instead of oil stored in the crankcase under the crankshaft). So I picked up the bike and rode it the three miles home and then parked it in my driveway, while I went into my home to take off my riding gear. When I returned to the bike it had dumped that extra quart of fresh oil all over my driveway.
Needless to say I was not very happy and it took a bag of oil absorbent and a lot of washing with degreaser to get my new bike and driveway clean again.
That was when I decided that I didn't want to have my brother work on any of my bikes ever again.
Attached are two photos of the SR500 when new and two more photos of the engine getting its cam chain and rings replaced due to excessive wear after 15K miles.