Drivers in front that slow to a near stop, and THEN look right at roundabouts.
40 in a NSL.
40 in a NSL and braking at the slightest hint of nothing.
Cushions on the parcel shelf - BEWARE.
Car in front that qualifies for 'Pick the worst possible new car on the market' (Renault sh*tebox etc) - BEWARE.
Infuriatingly bad lane discipline on DC or MW. If you're in lane 2 or 3, you're supposed to be overtaking. No other reason. Do not be in lane 2 or 3 to roll along oblivious to other drivers and the whole ****ing point of having more than one lane. Get back over when you're done. Use your mirrors. Motorways are saturated with incompetence. No wonder we get pileups.
And just to add, no, I don't sit up those ^ drivers' arses flashing my lights. I sit in a bemusingly empty lane 1, wondering why the hell I can't get a step on.