There must be a law that prohibit a person[runt] to use a grinder on an old car or for that matter any car......jeeezzz i get furious if i see this. Was on holiday in January and picked up an electrical problem on my Merc 190E, and had to look for an auto electrician. He was the man with the grinder and actually very chuffed on what he did.....
I wanted to tell him what i think of him but i was scared it will reflect on my account!!