I worked in the industry for many years and there have always been safety regulations. Since the 1990s they have become much more strict on enforcement. We always removed the guards from hand held grinders. We had older drill presses and air compressors that never had belt guards that they forced us to destroy. They levied a $1000 fine for the lack of guards. They could have fined us that for each grinder without a guard. They were also very strict about personal protective equipment like hard hats, gloves, 8 inch high safety shoes, safety glasses as well as a face shield every time we were drilling, grinding or cutting. No shorts. Welding jacket or sleeves when welding or grinding. They "suggested" a leather apron while grinding. When changing discs on a grinder, the grinder is to be unplugged. Same with drills. On cordless models, the battery is to be removed. We had older forklifts that didn't have seat belts. Forklifts made after a certain year are required to have seat belts. OSHA has no authority to enforce the use of seat belts but they "suggest" that employers require their use or they could be sued if an employee is injured when they don't use the seat belt. Flammable items and spray cans are to be kept in a dedicated storage cabinet. Safety data sheets are supposed to be available on site for any chemicals or paints used. I see many violations on these shows. I know one reality show featuring tree trimming lead to the company being shut down for violations because someone from OSHA saw it and found a multitude of violations. I wonder how these shops get by with some of the things they show.