A number of years ago I saw a list of "Welder's Commandments" hanging in a shop - sort of a tongue in cheek thing. Was searching the web a bit to see if I could turn it up, but no luck. Anyone seen it?

As I said, sort of tongue in cheek but actual lessons. The one I remember was something about Thou shalt not weld on containers of volatile fluids or your friends will be drinking all your beer and paying visits to your widow...