The daily Close Call

No squeeze! Unless you run disc brakes it is very unlikely you will go over the bars. As soon as the rear wheel lifts then let go, then apply the brake again as needed. Approach as fast as you want, as long as you can slow down again!

Cheers for the advice, I was more worried about the front wheel locking up. I'm getting much more confident with emergency stopping now. Some lady walked out between two parked vans yesterday and I squeezed hard, back wheel lifted but (like you say) by releasing a little bit managed to keep nicely balanced. I'm also really getting the hand of stopping fast by locking up the back wheel.