You obviously need to stop it, does Talulah go to obedience classes? - you could try putting some stones in a tin can and shaking them, has no effect on my dogs whatsoever as I tried it to stop one attacking the hoover, but I am told it works for most when they are doing something they shouldnt be. Unfortunately staffies are not the best at integrating with other dogs, nor cats!!, and the pup is getting to the age where she is trying to show her dominance over Jade. Sticks are not a great idea to throw for your dogs, try taking out two balls, one each? Good luck.....