Those slow buggers are a pain as well.
You know the one, the guy/woman in the aged metro or fiesta that insist on going 10 miles below the speed limit no matter where they are & what the conditions.
Where they cause a mile long tailback behind them of other cars that want to get past, making all the drivers get stressed & wound up & then they finally manage to get past after having to take enourmous risks because the bugger won't pull over a bit & insist on staying in the middle of the road.
I'm sure you know this person...