So...cleaned the car tonight, spent about 2-3 hours on it, a good wash and day with the wheels done inside and out. Also did the door sills and shuts etc and round the boot lid.
Sister goes out in it, get a phone call 2 mins later and she says someones thrown eggs at it :/
Told her to come back and it was all over the bonnet and windscreen. My main piss off was the fact that where it struck (impact speed must've been about 50mph at least) it's taken the paint off. :'( seriously seriously soul destroying.