Thanks everyone

I bear in mind your helpful suggestions. I like the idea of using the left hand signal and possibly the palm facing one, I bear that in mind for the future. I also remember the shouting
Not sure he would have heard me shouting, considering me was way back (when I checked I hadn't seen anyone) and the traffic was really busy. At first I was a bit frightened, as it could have ended up badly for both of us. Then I felt really angry and though the idiot probably wasn't paying attention. If he did hit me I think I would be tempted to deck him and definitely give him a piece of my mind
Lol I wonder if there was a bit of playing 'mine is faster then yours' involved, I was going flat out on my little folding bike and he might have wanted to overtake me at all costs (hence the high speed when passing)? What the poor sod didn't know is that my bike rides like a dream, had a freshly cleaned and oiled chain and can get up to 25 m/ph

with not much effort at all (it could probably go faster, but I wouldn't feel safe doing more then that, considering the bike has a high centre of gravity).
I also wonder if it was the same guy I caned twice before on the same road

?