We once went for breakfast at a Wetherspoons in Poole, and as it was nice weather we sat outside. Unfortunately next to a family who's young kids had everything on the menu, with no chance of finishing it all.

The staff clearly couldn't be arsed clearing up after the family had left, so it was left to the local seagull population. It was like a scene from "The Birds", and by the time they'd finished the floor was strewn with broken plates and cups. Better that I suppose than having the same lazy staff cleaning the bird shit off those plates and putting the next customers' meals on them.