Our new kitten Zoe (15 weeks) keeps play-attacking our other cat Kaylee (2yrs) and often gets carried away. Kaylee puts the smack down when this happens, but Zoe doesn't seem to respond to that at all - she just keeps on attacking relentlessly. I've read a lot about how the older cat will "put the kitten in its place" when she gets fed up, but she doesn't seem to be having any success with that. It's been going on like this for a few weeks now. Shouldn't the kitten be learning where to draw the line with rough play? Things get so rough at times I'm afraid there will be blood soon.