This. Also, people who actually slow down to prevent you from coming over into their lane. Speeding up because you can't stand the idea of someone perhaps being in front of you is ridiculous enough, but slowing down to prevent them from entry is all together absurd. I endure this CONSTANTLY in the DC area. As if the lane itself is a matter of personal property that they seek the need to defend. This place is a melting pot. A melting pot of SHIT, MAN.