As I stated earlier, there is nothing wrong with going door-to-door. Just don't go with the intention of taking the customer from another LCO. From your origional post that sounds like what you are trying to do. Tell the potential customer you are glad they have a good LCO providing them with service. Give them a card and let them know that if something comes up, or for some reason it does not work out, that they can give you a call. Leave it at that. It's best not to step on the toes of others.