I am not a time served tiler, I am a time served HVAC pipefitter Welder, but haven't really done that for years. Too many years on the clock really... I have never understood anyone getting as upset or uptight as some of you guys on here. Don't you guys realize that the very people you are saying are idiots are in turn also giving you extra work. How many of you have had to go in after someone elses bodge job, a few I would think. You can normally charge what you like and within reason take as long as you like due to you being an expert. I have been on some of these short courses and I have to say while it will not make you a time served person in that particular trade it does give you a start. I then worked with other tilers which was when my learning really began, but without the courses I wouldn't have even got a look in. I have also seen a few time served trades people in general, my trade included which are an absolute waste of space. One of the best pipefitters I worked with never did any formal training. Don't be too quick to rubbish everybody for having a go, there is always someone a lot better than you.