The first was at Horsham during Ex Vigilant in May '57. Javelin taxying while two Hunters from 74 Sqn are, respectively, preparing to take off and on finals.
One of the mountings for one of the Javelin's 'bosom' tanks comes adrift, rear of tank falls to tarmac and scrapes along losing fuel as the Javelin goes along. The inevitable happens.
ATC then shouts "You're on fire!" forgetting that there are two Hunters about, both of whom assume they are on fire. Hunter taking off aborts take off rather late. Brakes haven't a chance to work. Overshoots runway, does a spot of topiary on a hedge at end of runway, ends up in a field. Hunter coming in to land is put down quickly by pilot - but a bit too quickly and lands very hard. Whereupon his seat fires and pings him out of the aircraft while his erstwhile steed conducts some interior design on an airmen's accommodation block.
Javelin crew, still tayxying, still burning look on aghast. Nav observes 'damned hot today', prompting pilot to turn head and see that there may be a reason for his nav's warmth. Crew abandon aircraft (nav bruising his heels as he lands in running position, allegedly). Javelin reduced to ashes.
Thanks Archimedes. It was the first of your two suggestions. Thought it was Vampires and Hunters. When told by someone with a wry sense of humour and a caustic wit, has been known for those listening to be doubled up with laughter. Remember a full length article purely on these events being printed somewhere.