Lightning mate mentions ramming - that was prescribed when I did the OCU in 1964. The OC Ops welcomed us to Royal Air Force Fighter Command (a bit rich since most of us had arrived from Chivenor) and told us that with our Lightning we would be able to despatch 4 enemy aircraft - one with each of the two missiles, one with the guns and the fourth one we would ram. I tittered 'cause I thought he had made a funny - first of many career-limiting incidents.
'If you came here to laugh young man, you can leave now' said OC Ops. No sense of humour I decided and was proved right several times through the course.