Just to agree that people who let their dogs go up to another dog that is leashed are really annoying I think one of the first rules of good manners for walking dogs is that if another dog is leashed people should always ask permission before approaching it or allowing their dog to approach it. If their dog is unleashed they should LEASH it before trying to walk past - why should my dog suffer their dog edging closer and grinning while trying to beg treats or whatever? Often I leash my dog because he wants to play with their dog but their dog would feel it was being murdered, LOL my dog truly only wants to play... but they wouldn't like it if he did! Once Zac had a potentially contagious skin condition. All kinds of idiots let (or seemed incapable of stopping) their dogs run up to him while I had him sitting leashed and off the path. Just as well for them that he wasn't contagious after all.