So that's an excuse for leaving the place like a midden? OMG, they didn't provide refreshments, a porta loo or bin on every corner, hired help to wipe my bum and tidy up my mess, simply because there's a big football match on and I've chosen to wander the streets, so I'll just dump it all on the floor!
Don't know about you mate, but I was brought up not to drop litter, and if there wasn't a bin handy, to take my rubbish home.
You can't expect others to provide every necessary facility for you in a public space. And yes, Glasto's also often left like a filthy midden by lazy and inconsiderate slobs, and equally inexcusable, which is why I wouldn't go near it with a bargepole.
Is dropping litter on beaches,
having a shit in the sand or abandoning your kid's soiled nappies, also understandable, if the authorities haven't provided what you consider as 'adequate facilities'? If YOU create mess/rubbish, of ANY description, in
any public space, then YOU (no-one else) are responsible for it, and therefore to tidy it up - simples!!
The local authorities are not your unpaid skivvies.
Marco.