my mate chucked a 2L bottle of pop out of my car years ago there was a police car right behind us and we got stopped !
A coach driver told me a story once, about two rock star tourbus drivers (he may have been one of them) on a long job driving back through France, many years ago. On a motorway, in the middle of the night, the light came on to indicate that the toilet was full. They weren't supposed to empty it on the road, but...
At that time, the gendarmerie were fond of driving on sidelights only, to sneak up on speeders and so on. So this police car drives alongside and pulls them over. The senior driver said "Ok, leave the talking to me", and got out
Gendarme "You 'ave a problem wiz, ze.... your... (not knowing word) er... cupboard!"
Driver (feigning a loack of French" "Sorry mate, not with you"
Gendarme "Your... (remembers word) toilet!"
Driver "Oh, yes, we've got one of those, here...."
(takes gendarme on board, shows him toilet cubicle)
Driver "See, all fine, thanks, anyway, we'll be on our way....
Gendarme "No, no, is probleme...."
Driver "Looks fine, anyway, cheers..."
Gendarme takes driver off bus and leads him by arm to the back of the bus, where the police car sits, the entire fornt end liberally coated in toilet paper and.... stuff.
Driver admits it's a fair cop, and is allowed to go, once he's cleaned the police car....
I remember hearing a UK policeman talking once about a campaign to stop kids playing on railways. He said he'd ask them if they ever felt a sort of mist as a train went by, and when they said yes, he told them what it was....
All a bit OT, sorry. I like VC's tactic of smearing the rubbish over the car.