Blocking a lane or driving much slower than speed limit without stopping on side to let everyone pass.

And before attacking with your vehicle itself, you can try counting down from 60. Works every time in my experience.

My guess would be not adhering to the "keep right except to pass" signs on the highway. I don't tail gate, but I do find it rather annoying when people block traffic by driving right beside another vehicle rather than passing them and clearing the lane.

So that we can all not adhere to the "maximum" speed signs on the highway to the degree that we prefer :)

I was a passenger while a friend was driving once and he said "I'm already going fast enough. Nobody should be going faster than me anyway." So there's one mentality.