I went out for a bike ride today, and just as I was getting home I stopped at the traffic lights. There was a middle aged man walking along the pavement with his (obviously disabled) son, who was probably 20 odd or therabouts. The father was holding his son's hand, and they were walking slowly and obviously enjoying walking past parkland and deer in the spring evening sunshine. Next to me (at the lights) a car pulled up, with 3 young men in. They wound down the window and one of them started shouting all sorts of offensive comments at the father; at first I think they thought the man and son were a homosexual couple (and based their insults around this) and when the dispairing father told this twat that his son was disabled, this dude in the car just carried on, making his comments even more offensive. I was so shocked at what I'd just witnessed all I could do was look at this father who was clearly very hurt at what had just been said, while the car drove off with the other passengers laughing. No idea what I should (or could) have done but I hope that these utter twunts get what they deserve.