We had a chocolate lab. she was was not the type to bite but she did not like people rushing up on her. So we put a yellow bandana on her. It doesn't have to be a bandana as long as it is yellow. This means approach with caution. I didn't want anything to ruin her camping/rving trip, but I didn't mind other people enjoying her either. The older she got the more crankier she got. It never hurts to take precautions.