And that's fine. Knowing your limitations is a good thing, as anyone who has watched American Idol can tell you. But the sensible thing to do would be to get out of the scary lane, instead of constantly hitting your brakes in terror and veering so far to the right that your car has half changed lanes anyway.
Why do these people do this? Apparently it's really important for them to stay in the "fast lane" even though their pants-s**tting fear of the barrier is causing them to slow down so much they would probably be going faster in the next lane down anyway. Or maybe they're just too scared to think of what to do.
Listen, barrier-phobic people, it's OK to move over. The concrete barrier can't smell fear. It's not going to chase you.