Annoying, but not quite as annoying as the people who pull out infront of you, but accelerate at the speed of a snail instead of puttin the foot down a bit so you dont have to hit the brakes.
Or absolute numpties who think an indicator is a god given right to just move out on the motorway, even tho you are right beside them and have to nearly put yourself into the barrier to avoid a nasty coming together - as happened to me on the M77 on monday. **** never even stopped despite causing another 5 cars to nearly plough into each other and making me blow a tyre at 70mph. *******