Genghis
Exactly
Yes, he should have announced his intentions, but maybe he did and Glush missed it. He does seem to have been wrong on the distance to backtrack and the relative performance of the two aircraft.
Hmm, I agree, for an instructor the OP is beginning to look less than like a reliable witness. It is one of those stories that doesnt quite stand up to scrutiny.
Still it has kept us all entertained when we have nothing better to do!