We could always compare the proportion of footie fans who spit on cars, etc., with the proportion of dog-owners who let their dogs shit and piss all over the streets (including pissing on my car wheels). If Bude is anything to go by I should think there's no competition...

Not trying to do "he does it too, Miss," but just highlighting the point again that most human endeavours have downsides...

Live and let live!