with his permission he thought it was funny he saw the funny side of it as well, but they had this big argument for five minutes cos he thought what he'd done was right and he said  Jesus, I've been using this  for three years for the training in the branch er it makes you wonder doesn't it erm  but if you're gonna do practical applications you've gotta give people relevant examples  perhaps you start off basics with an example that is correct and then you start building on that don't you  then you start giving them the deviations and all this sort of stuff.