Driving down exposition. Three lanes going Westbound. I'm in the left lane. There are people turning in front of me at the next signal up (about 200 feet away) so i look over my shoulder, see its clear, signal, make a lane change and keep moving. The guy who was about 30 feet behind me didn't seem to like this. He's now behind me, hits the gas as hard as he can, changes lanes to the right lane and gets next to me, but everything is slowing down because of the light. So now he signals left directly into me. I see there is a bus in front of him, i check the left lane, and it actually looks like there is nobody turning anymore, so i signal left and move over to let him get around the bus. What i don't understand at this moment is that the nice signal means, "i want to move over all three lanes". I'm now in the left lane again, and as soon as he starts to change lanes from the right he doesn't stop. He's directly next to me and just pushes straight in. I don't really want to get into an accident, so i let the assclown over. Problem is, he doesn't turn off his signal. The meaning now has changed to "Sorry i cut you off, but now i'm going to make you wait behind me". Camera comes out in the waiting, and i catch him giving me the finger as i finally pass him.

Yup, thats his finger.