Slightly off-topic, but hey, that's me !!
I heard of a Chinook once involved in a civilian fire-fighting incident. They were returning to Hullavington, saw a tanker on fire on the motorway, so landed at Hullavington, got some firefighting gear and people, and went to put the fire out.
Turned out it was a beer tanker from Wadworth's in Devizes - they got a brewery tour in way of thanks. Wonder how much time was spent touring the brewery, and how much sampling ?