Idenise - great advise about the pop can with pennies. I might try that too by laying them in each room when needed in a moments notice. I have found this past month that I make this sound, like hacking a hair ball or something. It's harsh, high pitched and nasty sounding but oh does it get Schatzie's attention. I laugh, but heah whatever works right?? Good thing is I only have to make this sound once and not make a scene when doing it.