Smelly dog run...

My neighbor just purchased a border collie puppy. I have tried to be nice to the dog since she started living next door. I give him pieces of meat and other treats. When the dog is outside by herself and I am doing something the dog watches me constantly. When I move something large which she can see, she barks constantly and growls at me as if I was stealing something from her yard. I took the garbage cans to the curb on monday and the dog went nuts, barking and growling at me. I don't know what I have to do to make the puppy stop barking at me. My neighbors and my yard have a fence inbetween. My neighbors had a border collie before but she died about a month ago. The border collie that died did the same thing and I was accused of teasing her. What can I do to make the dog stop barking at me?

we just adopted a 5 yr old boxer from the local boxer rescue. We would like to switch brands of dry dog food but were told to switch immediately would cause pancreaitis. If this is true then how do you ween off the old food to the new?