I've not been convicted on the bike due to the usual combination of paranoia and being 'sensible'.
I was caught once, on my little Yammy RXS100 jsut after I'd run it in. It was my first bike and so I did the useual teenage (OK, anyage) thing of opening it up to see what it was capable of.
I managed 86 along a clear stretch of the A6 in Bedfordshire. I was concentrating so much on the road infront that I didn't notice the bike copper until he flashed his lights at me.
Pulled over, helmet off (hair was down to my bum then too) smiled somewhat guiltily and produced my provisional licence.
He asked how fast I was going and I admitted to not actually knowing as I was concentrating on the road, though I did say that I knew I was over the limit.
He grinned and gave me my docs back sayign I was doing 86 and that he was amazed I could get that bike to that speed - and cautioned me not to do it again.
Five months later he was the first official on the scene when I had my big bad crash on that same road a little further on.
I remember him bending over me in the road and asking if I was doing 86 - to which I replied "No sir, I don't think the bike can go that fast sir"
