Yeah, I've got to say, until a bit of time has passed, I wouldn't be wanting to try to turn right on a roundabout in the left hand lane whilst signalling I'm doing so expecting cars going straight ahead to be "courteous" and wait for me to enter/exit "their" lane. I've got to say though, pedestrians do the craziest things, luckily a lot of my riding is in the countryside, but when cycling in urban areas, I cycle slower as I was going down a local hill at the speed limit of 30mph and some lady walked out in front of me, I didn't have time to brake to come to a stop but swerved to duck behind her, she saw me at the last second and jumped back, if she'd kept going I'd have more leeway but had to swerve back out again at her jumping back towards the kerb. I had lights on and a high-vis biking jacket, this would probably if it had turned into an accident had the fault layed at my door, but there's no accounting for what people do when they're not concentrating whilst crossing roads... Going at speed isn't always the advantage you might think, give yourself more time to get places, my mate knocked over a child whilst cycling to work in London, no serious damage done, but couldn't cope with the guilt and hasn't commuted on a bike since.