I won't name the airfield in question. The fuel theft was a regular occurance but they have neglected to do anything about it other than report it to the police. Fuel was even stolen out of aircraft in a locked hangar, makes you wonder if it's an inside job.
As for the use they get out of it, it has been rumoured that they use the high octane of avgas for off-road quadbikes and motorbikes.
Cheers ladies and gents for your interest.