Oh yes, never trust that another person is going to do what you think they are. One of our apprentices got run over because he assumed his pal, another apprentice, was going to go forward so he stood behind the car - which would have been the logical thing to do in the circumstances - but instead went backwards as he thought he needed more room in front to maneuver. Luckily, if you can call him lucky, the lad was knocked sideways so only his foot got run over, but it could have been much more nasty. To this day I feel very anxious if I have to stand in front, or behind, a car with anyone behind the wheel, particularly if the engine is running and more especially if it's an automatic.
I bet we've all sold/passed on tools we now regret doing? When I finally made the move permanently away from the workshop floor and took up the instructional roll one of the younger chaps pestered me to death to let him buy some of my tools - I had mostly Britool stuff then (the proper good old Britool) which I'd bought over many years. I thought I'd be stepping back from the practical "greasy" stuff to some degree. But as the years have gone by and I've continued to involve myself with the "family fleet" and increasingly with elderly horticultural machinery and repairs on more modern stuff belonging to family, friends and neighbours, I wish I'd kept them as I've had to buy replacements for a lot of the stuff I sold him.