Yeah, just like a bricky who has built a wall or a carpenter that has erected a roof - we don't do their work either
Please, get real, do not let your bad experiences cloud your judgement and make ridiculous inaccurate generalisations. In my office we have have four surveyors, all have worked on site on the tools and in site management, all have degrees, 2 have MBAs, 2 are chartered builders one is a chartered surveyor and 3 have City and Guilds 2391 and 2382. We do know what we are looking at, we can test as required and we are fed up with seeing poor work on site. 7 out of 10 jobs will have a fault generally minor but a fault none the less - normally disregard for safe zones - Don't wory mate its got an RCD is the normal reply to criticism!!