I'm fostering a cat and her two kittens for a local rescue. The kittens are 4 weeks old and I'm assuming big for their age (going on other threads on here), probably down to litter size. Over the last couple of days they have really found their feet, and since then Molly (mum) has been starting to play with them. However, on the last few occasions she has had to be stopped from doing this as she started quite heftily biting and "bunny kicking" them. We have reason to suspect that Molly might have some mild brain damage - I have had a brain damaged cat in the past so am probably looking at things that aren't there and certainly don't want to "label" her if I'm wrong, but I suspect she is very mildly affected (perhaps very mild CH from the way she acts). It's just as possible that she is just a daft and very clumsy cat though and until she gets her next check I don't want to presume anything as her previous owner didn't and neither did the rescue. Perhaps I'm worrying over nothing, but at the very least she is gorgeously, adorably, odd. However, this new behaviour ties in with her "dippy" behaviour, and I'm not entirely sure what to do. I know mum cats start to play with their kids, and have fostered litters before so know this goes a bit beyond normal messing about or discipline, if you get me. She gets really very over-stimulated and takes it to the level of very rough play, as if playing rough with an adult cat. She hasn't managed to hurt them as yet but that's more through luck and her being stopped than her regulating how hard she plays with them, if you understand what I mean. Does anyone have any advice on how to manage this?