Just replying to the couple of recent topics
1. Just don't drink the day before a shift or medical, unless you have some medical problem this is all you need to do. No need to be super cautious, I think the limit is like 1/3rd of the driving limit, so if you accidentally eat a liquor chocolate or something its not the end of the world either.
2. I'm sorry
@joestankey18 to hear about your set back. I don't know the recent stats on pass/fail as IST I can only go on my own experience, 9/10 in my class were successful and went on to long term careers in Signalling, Mobile Operations and Management. I say to the people who do PM me about this that if you have got as far as IST then you have the ability to pass, the LOM's and OM's that offer you the jobs generally have a good eye for the right kind of person to hire. Yes you need to apply yourself whilst there of course, but I think stressing about it to the point that it is effecting you isn't the way to go, especially if you haven't even started IST yet!