Speaking of Ring L*ser Gyros, I was in a Buffalo NY bar one night when I got chatting to the guy next to me. Turns out he's with Litton INS. I casually asked him when his electro-mechanical marvels would be superseded by Ring L*sers. 'Long time yet' he said, the opposition (who I knew held the Patents) can't get the right quality optics'.
As it happened I'd been thinking about this and suggested that zero gravity optics production aboard the Space Shuttle would solve that. Well, the guy leapt off his stool, turned bright red and hollered (US expression) 'Who the **** told you about that?'.
He wouldn't let it go and I had to find somewhere else to drink. I never did find out if I'd hit the nail on the head, and a raw nerve, or whether he actually knew as little as I did.