Okay, Rob... here's one from today.
My first thought was: Witches of Eastwood, followed by Blair Witch Project.
Nice of you to post it because though it's a pissing-with-rain sort of morning, 09.42 hrs for me, I think the clock goes back tonight and I get an extra hour in my pit. And best of all, the snow we get is usually on the mountains!
However, it does mean that I might be an early loser of domicile if the sea rises, which it seems to be doing.
Early as it is, I discovered that if I put an 11cms piece of barra (French bread) into the toaster, when it's ready, it shrinks to 90.90909% of its original length - to 10cms. That's not to say, of course, that I always manage to cut an exact 11cms length every time; for a snack, I prefer longer with cucumber and tomato, which is where I originally discovered the phenomenon of format change, if not its order of magnitude. The reason that I discovered the change had nothing to do with gravity and falling apples, just that I expected to have cut sufficient length to accommodate three slices of tomato but ended up with base for about two-and-a-half.
Not a lot of people knows that.