A delightful story that I heard about Charlie from an 'old and bold' DC3 pilot who had flown Constellations from Sao Tome into Biafra during that war. All their ops were at night to avoid interception as the Nigerians had very poor, or non-existent, night interception capabilities. (Limited runway lights in Biafra would be turned on when they were on short final and turned off on touchdown.) Charlie was then on the Nigerian side flying MiGs and was one of the few who flew (or could fly?) at night, so he would be sent of to 'patrol' to intercept air traffic going into Biafra. He always flew with his nav lights on. 'Behind the scenes' a common frequency had been passed on between him and that Constellation pilots (who were largely his ex-colleagues from the SAAF). When any of the Constellation pilots saw nav lights above, they would quickly call on that frequency "**ck Off, Charlie" and then watch the nav lights turn away from them...