Totally this. I cycled for year in London - the amount of lorries, buses and taxi's that would sneak through when a light was turning/had turned red - blocking

Totally this. I cycled for year in London - the amount of lorries, buses and taxi's that would sneak through when a light was turning/had turned red - blocking junctions and pedestrians from crossing safely at lights, I stopped to watch a police fishing campaign at a set of lights that a lot of cyclists went through - and had to physically go to the police to get them to intervene when motorists did the same - as they were ignoring them (mentality seemed to be 'we are here to ticket cyclists, anything else that happens today isn't my problem'). LOADS of people break the rules of the road, let's focus were the biggest risks and dangers are. That said, I haven't run a red on a bike for a very long time - I'd rather not give drivers any more reasons to be annoyed with cyclists.