When you go to a coffee shop and you leave your dog tied up outside, if the dog immediately proceeds to bark, and bark, and bark, and bark louder up until the moment you come outside - you need to know that every single person living and working within a kilometre radius of your dog can hear that very loud and annoying barking. Don't be a jerk! Your dog is stressing out and obviously can't deal with it - so deal with it! —Get a coffee maker