Mobile phone is always on my person but how do I dial the numbers after all my fingers are chopped off on the machine. LOL Talking about someone keeping a check on you when working, about 3 years ago I was modifying my trailer and making ramps out of 'I' beams. I was working away in the back yard using the angle grinder on a nice summers day at about 38 Deg C (100F) and the wife came out and said what is that smell?? Then I turned around and the the lawn was well alight behind me, quickly got the hose and put out the fire. Good thing was she was there and I don't have a very good sense of smell so didn't notice (even though I was blessed with a big honker, that was a waste LOL). The other up side was I didn't have to mow the grass for half the back yard for at least 2 months. It just goes to show danger is everywhere and you need to be on your toes all the time and really consider everything that can go wrong. That is not being pesimistic it's being a realist, SAFETY is paramount for you and everyone around you, SO THINK BEFORE YOU DO ANYTHING, anything that can go wrong WILL, when you least expect it.