As I was cycling along at about 20mph I felt something whack into my back, at first I was so shocked I didn't know what had happened, I thought I had been clipped by a wing mirror it hit that hard

After I managed to stop without falling off I realised a friendly motorist/passenger had thrown and egg at me

I can't believe that someone would do that......I'm so angry!
And despite the fact that it was only an egg I'm now sporting a nice bruise

As I cycle mostly by myself I now feel worried about going out alone, what if I'd have been knocked off? Have people got no sense?