You're probably right. I remember when I was a kid dobermans were considered the snappy dogs, with several colorful stories supporting that "fact"... My dog was a bull terrier, not a pitbull though. Anyways, when he left us I got ourselves a frenchie, so one less thing to worry about.
The blade has a plastic sheath on it to keep the school children on field trips from touching it. Yeah, it was pretty wild to see the way they did things back then. The tour guide said that all the machines would be running continually. There were close to 30 men using the workshop, with most being apprentices and only a few master craftsmen. They used shark's skin on the drum sander if they could get it. Otherwise they used sand impregnated damp cloth.