Truckers are starting to annoy me by pushing into the middle of lane of the motorway and expecting traffic to make rash manoeuvres into the outside lane. They're so impatient they can't wait a couple of seconds for you to pass. Then there's the one's who can't be bothered to stop at a roundabout and pull out at 10mph making you brake suddenly.
They used to be good courteous drivers too. Maybe it's the younger generation.