Stu
I had the same experience with an ex military trainer years ago
his words " dont say thank you they just doing their job "
That was during my GFT's training years ago in a small airfield (non busy)
I still remember it
About the BY maybe he had a bad day.....we all do
and I am sure you can find good or bad operators with good or bad CRM in all the airlines regardless of country, culture etc