My sister has a new puppy and he barks constantly. I didn't realize how much of a big deal it was until I was there baby-sitting for an afternoon. Everytime I had my nephew almost asleep Jake would start barking. Sometimes he barks because he sees someone walking in the street (they leave the front door open a lot) but a lot of the time he barks at NOTHING!! My sister has a 7 year old, 2 year old and is 8 months pregnant. She has no idea what to do?? I've never had this problem so I don't know what to tell her. ANY SUGGESTIONS??? Thanks!