I cannot believe what I read, wilful physical damage to someones equipment, I know we can have difficulties, but resorting to that sort of behaviour is less then professional.

I have filmed for over 20 years and never had to resort to such things ( or had it cross my mind), and apart from the few difficult jobs, I get my head down and get on with it. If I believe there will be a compromise of my work that the client is expecting then I will communicate it to the client and let them decide what to do.