I remember when I just started flying I got stuck with this instructor who looked as if he had been sleeping in a bin all night. It was a Katana that I started flying so you can imagine the smell sitting so close to him...
We were doing some checks on the aircraft and as he was getting his seatbelt sorted he farted 4 times and then closed the hatch down... I was fumming mad by this time as my previous instructor was an FO for a big airline.
We got off the ground, I was only 16 at the time so was a bit nervous. We were doing climbing and descending when, after my first shot at it, he turned to me and said "That was ****, lets try that again".. I was devastated, imagine being told you were **** that early on...
I ended up leaving the school that day at went to a much better flying school where I got a lot of good feedback from experienced instructors.