I just started training my 4 moth old SHAKA to ring when he needs to go out mistake number 1. i put the chime on the floor n he plays with it so it moving all over the place so now i stuck it by the door n have toretrain him to use his nose aaaahhh but i love this journey wish me luckhttp://www.dobermantalk.com/images/smilies/thumbsup.gif