I was riding on a dual carriageway today. Didn't intend to cycle on it but it was the only real way to get from A to B on an unfamiliar route. I think it was either a 50 or 70 road. Anyway this car goes past me and beeps. I wasn't in his way or owt and the road wasn't busy. Not sure what his beef was to be honest. Maybe he thought what's he doing on a dual carriageway? It is okay to cycle on dual carriageways right?