That is a familiar story and it reminded me of doing similar things in my 8 years of UN/ICRC contract flying in Africa and in the former USSR.
I think that is very helpful and they too, the Ruskies, will pass on the the information to their comrades, and so on and so on.
It's friendly, courteous and the message is brought accross without shaming them.
I enjoyed the story as much as you enjoyed the de-icing fluid.
Keep it up.
