Conclusive evidence that the Meat did take place and that we did eat Teeth-cracking English Nachos, lovingly crafted from sows' ears. You'll just have to take it on trust that Mouse was there too, or ask his local hospital to post the X Rays.
Worse, they were post-modern, home-made scratchings. They sounded gorgeous to the drunken palate but had the crunchiness of broken crockery pasted spread liberally with lard.