'Drivers' who don't know the rules about Yellow Box Junctions are Yellow Box Junction Cunts!
You know the one, the cunt who hovers at the edge of the box while indicating 'right'; not realising that unless he/she moves into the centre of the box and activates the sensor the lights won't 'know' he/she is there and so won't trigger the "right turn only >" light and we'll all be there till half past fucking midnight.
As you catch his/her timid eye in his rear view mirror the little wanker is thinking "OOh no! You're not going to bully me just because you have an un-eco-friendly humveee, I am right and have the law on my side"
No it isn't you CUNT, YOU are committing the offence of OBSTRUCTION, ie Of ME!
No matter how many times you blare your horn at his/her unlawful behaviour the wanker sits there until the lights turn amber then skootles across (ILLEGALLY!) leaving me, and the five drivers behind, looking like, well, some sort of cunts, actually.