Silly thing to do though in 'working' airspace, but having had 3 different aeroplanes (one flying outbound along the localiser at my inbound level, one in restricted airspace where he wasn't supposed to be and the last bust his level in Brussels airspace and very nearly took us out) try to hit me over my career I'm inclined to let others know where I am....
Clearly White Knight has the right idea.
Many new folks, who have never been in such situations are just plain mis-informed.
Out over Africa, I always figured that if another passing aeroplane did not return the passing flash, the crews were either asleep (likely) or both were staring at the FMS, wondering...'what the heck is it doing now' (more likely).
