Some times the truth is just to much

What is it with the way some (most) people drive? Today I was on the freeway in the right hand lane driving home. I came up on a school bus going about 60. I still had a few miles to go and didn't feel like going 60 the rest of the way home. So when I had the chance I passed the bus and got back in the right hand lane. I look in the rear view mirror and the bus is speeding up to catch me then it goes around me and squeezes in between me and the car in front of me and slows down again. I don't get it what did this get him? Some people just should not drive.