Watch the short clip below. Took it on the way home tonight (yes, illegally holding the phone with one hand, I admit). Lots of rush-hour cars, all eager to get home for their tea in the warm rain ... so lots of steamed-up windows, too. Difficult to see, and the only sound is those collective stomachs a-rumblin', mine included. Plenty of barely-concealed British impatience.
So, no surprise the queue of traffic invents a new lane across the diagonal stripes, eager to get to the roundabout ahead. Is it "necessary" (as the Highway Code says it must be before you should corss the broken lines bordering the stripes) ? No.
But if everyone else is doing it, how do you join that line if you also want to get into that dedicated lane for turning right ? Answer: very cautiously, despite their illegality. You have the priority but they're there first ... so you can't barge in. Swallow your pride, take you time. Priority must be given, not seized. Bask in your inner sense of pious correctness and don't be seduced by the sirens of road rage. (Or become so mesmerised staring between the raindrops in the right door mirror that you miss the stationary sports car ahead and gently nudge its bumper ... or worse !)