My closest call was when I was replacing the rollers ,idlers and tracks on a D-7 Cat in the bush.
We had the machine jacked up and blocked with some huge wooden blocks.There were a few broken bolts that would have to be drilled out and extracted. I had all my tools all laid out and when I figured I'd head to town to get some eye protection. The boss comes over and asks what the hold up was. I tell him that I'm headed to town to get a set of goggles.
He got pi$$ed at me and said that he would have to do it his self. Well to make a long story short after 2 minutes he got a metal splinter in his eye and had to be rushed to the hosiptal 20 miles away , he was off work for 2 weeks.
Which gave me plenty of time to finish the job

by the way we never mentioned what happened again and I worked for him for 2 more years .

think about safety before starting
hank