Dog Heaven (1927)

Poor Pete the Pup He wants to hang himself because his master Joe has given up playing with him and going fishing for the love of a girl A dog friend of Petes stops him in the nick of time and in flashback Pete tells him of his sorrows Pete becomes a drunkard and is chased away by Joe The last straw comes when another dog knocks Joes sweetheart into a lake and Pete is blamed for it Will Pete carry through with his suicide or will Joe apologize