Re: Now I know how the postman feels...
When dogs chase me, I try to anticipate his approach and stop about the same time that he meets me. This confuses them. Especialy if you make aggresive moves towards them like you're gonna chase them with the MB.
There was one dog that would crouch behind cans or cars and jump out as I came abreast. I anticipated him one day, and veered closer and caught him in the shoulder with my steel toed boot. Now he runs the other way when I pass.