That's true. Been here for 4 months now....when I was told I needed to be the ADSL "expert" I thought "what the hell is there to know about it???" Since coming on here and dealing with different types of problems (intermittent ones being by far the most difficult to sort out) I've actually learned that there is a hell of a lot to know about ADSL!!
I feel motivated to learn more and thankyou for all your great help! Like you say, it's learning more things every single day and dealing with things in a structured way, that's really hard when you feel like you already know what the problem is.