Jemima . . .

. . . was asleep next to me on the couch, lying on her side with her paws out in front of her. She was twitching and purring a bit in her sleep (she does this a lot when she's dreaming), then suddenly, she jumped - with her whole body - and moved a foot to the left, landed and then woke up. She was understandably very alarmed to wake up suddenly landing a foot from where she started, and she promptly attacked a cushion viciously as the culprit then ran off and is now sitting rather resentfully in the hall.

I can't stop laughing.

Poor kitty!