Not so much funny as bizarre at the time but "Bl@@dy cold in here isnt it" - at least five times in fairly quick succession on a long mid winter navex.
Eventually I got fed up with this and said "What do you expect me to do about it?"
His response was that he was checking how I would look after a passenger and the least I could do was put the heater on.
Duh! I was converting from gliders and the concept of a heater in an aircraft had simply not occurred to me - what luxury.
g45