Mine was heading north while I was driving between Dartford Heath and Crayford, just crossing the site fo the battle between the Jutes and the British which established a boundary which is still that of London. Which has nothing to do with the fireball, which looked so close that my friend and I turned off and went north to Erith to see if anything had happened.

Which it hadn't as it was much higher, and had crossed the North Sea to crash in Greenland (possibly). It has never been found.

It was huge, throwing out sparks like a firework.

Of course, the Perseids aren't that sort of size, being comet debris and dust sized particles. I used to see them when I went camping in Cornwall, where the skies are dark, one or two each time I visited the loos.

Penny