I've seen them. I know what they look like, and often catch them whizzing across the road at weasel warp speed.
But their size always surprises me. Every time. I know they are small. But when you look at a picture of a weasel or think weasel, you think bigger. You don't think "oh, a weasel. That's a little bigger than a hamster that is". Or I don't. I go, ooooh a weasel. Wow, it's tiny, every time, the surprise never abates.
I struggle with weasel physics. That the actual weasel is not the size of the concept of weasel in my head.
This thread has baffled me. Weasels are the size of cats, aren't they? You're messing with my head.
I'm not convinced that badgers actually exist. I have never seen a badger, and nor has any member of my immediate family. Nor any of my friends. People talk about badgers, and film dodgy looking animals in blurry night-vision (so they could be anything, frankly) claiming that they're badgers, but who has actually touched one?