From what I have been raised on part of the testing comes from whether or not they are ready. Taken from the chain to school and the exams determine their grade rather than homework and the last test determines their value or feed. I may be wrong but like I said I was brought up on they go or they go to sleep. I have seen a lot of good dogs in the wrong hands get punished to hard and if it wasn't the right move, the right act or the right defense they got the boot. SO it really depends on the owner and his right judgements rather that feed an untested or none worked dog, I know I wouldn't.