Being rear-ended is my biggest fear, regardless of what I'm driving. In a car or on a bike, when someone is following too close, if possible I pull over and let them go by. Also when being followed, I don't make courtesy stops for cars trying to exit sidestreets to my lane. At stops, if there is a car in front of me, I leave lots of room, to keep from being sandwiched, if hit from behind.
When approaching a stop with someone behind me, tailgating or not, I do everything I can to make them pay attention. This always involves flashing the brake lights, long before the stop , and in the case of tailgaters, I slow down well before the stop, of course slowing them at the same time. This sometimes pisses them off, but at least I know their eyes or on me when I do get stopped. I also try to see who's doing the driving, and act accordingly. Young girls on cellphones, and carloads of punks(for want of a better word), always send shivers up my spine. Excuse the "typecasting", but that's just the way it is.
On the bike, I have two brakelights. The top one is fitted with a modulator that automatically flashes the light in a pattern, as long as the brakes are applied. I leave my bike in gear at stops.
I've never been a slave to the dictates of fashion, this also applies to what's considered "de rigure" for bikers. I ditched my black jacket years ago, in favour of a lighter colour, and I also wear a reflective vest. At gas stops, I have been told many times by drivers how much more visible they make a rider, compared to your basic black variety. That's proof enough for me.
Ride safe!