They're bad, but the ones who're starting to really piss me off are the fuckwits who see I'm driving happily along in a driving school car and instantly decide "I'm going to drive right up that guy's exhaust" - yeah I get that it's only my second lesson, yeah I get that you want to go at 40mph in a 30 zone, but there's no need to be a cunt about it!
When it comes to parking the ones that really annoy me are the ones who drive smaller cars but for some reason still require 2 spaces, how it's even possible to spread a Kia Picanto across two spaces I don't know but some people manage it. Oh and that moment when you're in a car park and you're looking for a space and you have the "cool, space....fucking smart car!"