Keith,
I promise to try and make my posts simpler ... do feel free to chastise me in a kindly fashion as required when I fail ...
Those instructors who resort to anything other than being helpful, especially those who are screamers, sarcastic or demeaning, are extremely counterproductive and can put a student back significantly and, on occasions, destroy the student's ability to learn in the short to medium term .... if the student is funding the exercise, then this is not a very satisfactory situation at all ...
Perhaps DECU can tell us if he/she is happy so far, or would prefer some more discussion .....
... and it is a laudable, if not often realised, hope for a thread not to wander off course a little ....