Stop in for a cup of coffee
That right there is exactly why I pretty much quit welding for folks I don’t know. A neighbor brought over a broken chainsaw made of cast magnesium. I charged him forty bucks and he threw a fit, total melt down. He ranted it only took me fifteen minutes to weld it. I explained it had in fact took me many years to learn how to weld cast magnesium and not leave a puddle of goo, with a fire I could not put out. He was not happy and I decided right then and there I was done. No good deed goes unpunished.