I rescued a 3 year old lab about 6 months ago. Whenever I take him on the boat or I take him on a walk in public and stop to talk to someone or just stop to look for shells on the beach, he whines non stop. I cant figure out why or how to fix this. He gets plenty of exercise, we play fetch all of the time, and he gets tons of attention. Any suggestions or ideas about why he's whining and how to correct this behavior would be great!