Hi my 16 week old cavalier is driving me insane. I just can't get her to stop biting, if i go to stroke her she automatically starts to bite my hand. I've tried all the things i've read on here about it but nothing seems to work. I'm at the end of my tether and seriously thinking of rehoming her. She is extremely disobedient and totally terrorises my 8 yo cavalier. She is getting so fed up with her, she does warn the pup off but the pup just goes straight back to annoying her. I just found out that my older dog has a heart murmur and i'm worried that its too much for her. I'm finding it increasingly hard to like the pup and i feel bad about that but its so difficult.