Without getting into a debate, has anyone tried a citronella collar or a whistle collar? I'm trying to wean Kody off his automatic bark collar. I need to switch it up while I am training him, and he's become, as most beagles will, immune to this method. If he has the collar on, he usually will not bark if he hears something, but I cant have him in the living room without him barking out the window whenever he seens a dog or a person. So my dad offered to pay for a new collar to try out. Citronella or whistle?