People who don't use their indicators while driving, driving too slow on a motorway, driving in the middle lane while the left lane is empty, people who drive slow until I try to over take them then speed up while I'm restricted to 68mph, (motorways) then stay beside me with people behind me getting irritated at me, people who don't know what lane they are supposed to be in, people who keep swapping lanes in traffic to try an get ahead, people who don't concentrate at traffic lights then don't move when the lights turn green until just before they turn red so I have to wait again, so in short every driver on the road hahaha