Someone's to close behind you so you hit the brakes ? lucky he didn't rear end you , you may have bumped your head and lost that brain cell that's rattling around in there .
This is becoming increasingly common and happened to me forcing me to hit the kerb and sustain damage to my wheel & gearbox. This is why automated cars are coming because some people don't know what the lines are for. Salad.
Terrible driving technique, takes the "racing line" which is completely inappropriate on school lanes. Spotted doing donuts in the community centre car park, nearly ran Beryl over! How can we play bingo with that racket outside!!
A disgrace