"Stanley held the lead, all the way to the first fence..."
A bit like the Daleks and the stairs, really.
I dunno - is it that they move, but they're not an animal? Flapping plastic I can understand. And then there's the things which you can't see behind you, but they can...
LOL They wouldn't be as much fun if they didn't do that though, they'd be motorbikes! And most of the time they are only taking advantage of the fact that either you aren't concentrating so they can get their own back by leaping about a bit OR you are getting anxious about the equiniverous beastie becasue they jumped about last time and you are anticipating that they are going to do it again.
Darleks and stairs...hmm.
How about my dog who NEVER barks when he is awake but woofs away at dream rabbits?