Its harder to do a job wrong then it is to do it right ..this should be taught across all the construction trades . People who take pride in their work do it right first time from what I see in the trades when people hate their job they dont care whats right or wrong just do what they can get away with to cover themselves lready told a few moaning apprentices if they dont like plumbing do something else had some great lads also willing and eager to learn everything from the trade