Can anyone recommend a good shock collar that gets results. This pup is going to have to police at the door soon with constant barking. Iv tried everything and bought wee cheap shock collars but they were crap. I feel this is my last resort. It's not lonely as all the dogs can see each other in the kennels it's just constantly barking at them. I don't want to put it in with a terrier coz when out its always hassling them so if would be worse in a kennel and the terrier might turn. If anyone has any other advice or different method that would be appreciated, thanks