MJ when are you being beatified? I didn't see your name on the Popes list last week!!
There are the odd occasions when a good bollocking is required, but they are fairly few and far between and usually reserved for people with attitude problems NOT for students finding the course difficult.
A wise man once said "if you don't pass we've both failed, you've failed to learn and I've failed to teach you."
Sums up a good instructor really.