Here is a picture of a recent sewer machine accident. The operator of the drain cleaning machine was trying to unclog a drain line and the cable got entangled with the pant leg.
Once this happened the cable then entwined with the article of clothing and proceeded to keep turning, winding down until the tension of the cable ripped the skin off of the lower leg.
Due to contamination of the leg by the sewer cable's unsanitary nature, the leg was removed 4 days later due to the inability to prevent the spreading of infection and agonizing pain.
The employee is no longer a plumber as a result of this unexpected accident.
Here's the photo of what that leg looked like before amputation. Not much left.
If this is too gruesome to post on here to other members then by all means delete the photo link. It kinda kills the reality of how dangerous drain cleaning equipment really is when mishaps happen during the use of the equipment whether you've just used one for the first time or you've been doing it for years.....and made a mistake.
I myself have had a couple/few close calls and I'm always trying to stay very attentive to the machine and what it is doing while I'm operating it.