I'm putting LED brake/runnning light on my hard bags so if I do burn out a tail light I will still be visible from the rear. I am also wiring them to an unused fuse for further redundancy. Getting rear ended scares me worse than anything.
If I am in the outside lane, I plan my escape to the left if a driver is not slowing. Several times in my truck I've had drivers go onto the shoulder on the right if they were coming too fast and I was stopped.