hi guys , ive got a sensitive problem with one of my neighbours . he thinks its perfectly acceptable to own a large vicous bitzer of a dog that barks its head off each time somebody walks past his house.
i prefer to keep the peace and i'm too gutless to approach him directly about it. hes the sort of person who would get another one in spite and i cannot afford to move.

ive seen ultrasonic dog repellers on ebay , do you know if they work or are they just a gimmick? my theory is to keep one in my pocket and activate it whenever this offensive dog barks. i dont know how close i have to be or whether it will work through a paling fence.

any ideas / comments? any other humane ways of dealing with it?