Thanks for the positive comments. You've made me brave. I have another -more recent- story, however its not so gut-wrenchingly embarrassing as my earlier experience.
Last weekend I was completing the last few dives of a navigation course. I had some problems with my nav skills so the instructor swam with me while I followed the navigation directions. He swam directly over my right shoulder, holding lightly onto the top of my tank so that he could watch the compass when I set and followed the bearings.
At the end of a short navigation skill exercise we stopped at the bottom: he was still positioned horizontally in the water over my right shoulder.
And then it got embarrassing.
He took my compass to demonstrate something. The compass is part of my gauge panel which is fixed to my left side. As he gently pulled on the hose to bring the compass nearer to his face, he flipped me over onto my back.
You will recall that he was swimming above me, so the effect of flipping me over was to place us face to face in a horizontal position. I was on the bottom: missionary position.
Still... things weren't too bad - we were separated by about 30cm (1 foot)of water which saved a little decorum for our situation...until..
Until my self-conscious awareness of our relative positions made me a little flustered and caused me to breath a little quicker than usual. The experienced divers amoung you will immediately appreciate the result. I started to ascend and very quickly crashed into him (remember we were only a hose-length appart).
So there we were, face to face in the horizontal position - another parody of affection.
I wriggled and flailed my arms trying to discretely waft myself down-wards and away from him while also dutifully watching the stuff he was demonstrating on my compass. My efforts to separate us were to no avail - I was breathing quite quickly by this stage.
I tried to waft sidewards, banging my knees and hip into him but something on our BCs got a little tangled so the escape was clumsy. He was still holding onto my gauge - he was focused on showing me the compass stuff and apparently oblivious to the fact that we were well within eachother's personal spaces: flank-to-flank. When I pushed my leg away from him it had the effect of a fin-kick, which pushed me closer to him.
Eventually I did manage to dislodge myself, recover some dignity and passed the nav course (I now qualify for a Master Scuba Diver and I also figure that I qualify for a Master of Mr Bean too).
-bash