so i bought a call bell (cheaper version of pet chime, but has the same purpose) anyways, how do i get her to make association that when she has to go potty, she has to paw the bell? she is already pawing the bell, but cause i gave her treats do get her to do that.... but i actually need her to paw, when she has to go outside.... se is a 3 month lab... thanks for you help!!!