Good buddy in ME had a male Black lab, Baxter. He was living on waterfront of decent sized lake, bachelor. Fenced yard. On the road a lot doing sales.

Gets a call one day Baxter has been contained on private property; please come to this address and retrieve your animal.

Dog swam about 1.5 miles across open water to get to a small exclusive breeders place. Smelled that [bleep] from that far away and got there!

Best part of story - Bax was a well documented thoroughbred himself, and the breeder was so impressed they ended up PAYING my pal for the privilege of studding him out.