Last year at dd’s house we naturally left out some carrots for the reindeer, in a dish outside. (FC’s tot of brandy and mince pie were in the kitchen.)
In the morning, when I went with little Gdcs to check that the carrots were gone, would you believe it, there were some very messy, chewed up morsels of carrot strewn around the dish!
So of course there were tut-tut, ‘What a mess!’ type comments, followed by, ‘But at least they didn’t pooh in the garden!’
Any more useful proofs?