As a one time cyclist it irritates me to see these idiots using the pedestrian area of our streets, or going the wrong way up a one way street. I had some fool who kept ringing his bell so that I would get out of his way when I was pruning my hedge. I pointed out that there was a perfectly good road which he could use and got the usual abuse.
One ran into me once and as a result fell off his bike. He felt that I was in the wrong. I suggested that since he could not ride on the road he should still be using stabilisers.