People who don't know how to merge onto or get off the freeway! Drives me batsh*t crazy. It is the job of the people coming onto the freeway to be driving the speed of the freeway when they get on. And it is their job to merge, it is not the freeway people's job to slow down to 40 to let them in. NO! This isn't a McDonald's parking lot you are courteously waving someone out in the line of traffic. This is the freeway. Yes, we can adjust one or two miles per hour to allow for a smooth merge, but dropping down many miles per hour is dangerous. And yes, we don't have to be total a-holes, if you can get over to allow the merge traffic free access to the lane, then get over. But, if you don't know the laws of successful merging, get the hell outta my way and stay off the freeway.
whew! rant over. I think I broke a rib.