This is my story of my little man (not the 1 in my profile).
My oldest dog had been attacked by a horrendous bull mastiff - that it's 15-yr old owner had let off leash to purposely attack other dogs in an on-leash area - and had suddently become blind and of course aggitated from the attack. He was stumbling and charging around a lot in a panic, and one day he charged into my Dad's vegie patch; that is huge.
I couldn't find him so I started calling out his name frantically and my little pup charged into the backyard, running up and down until he smelt the older dog in the vegie patch. The pup bounded into the vegie patch, jumped up in front of the older dogs nose, touched his nose so he felt and smelt him; then he walked s..l..o..w..l..y in front of the older dog until he had maneuvred him out of the vegie patch.
My older dog has since passed (as a result of the dog attack), however, the pup is now a "big" 4-yr old boy (I have "big" as is as he's a whopping 4kg

). He now is our family gatherer - if anyone wants to find someone, all we have to do is call their name and he will volunteer to find them, and bring them back to you (wheter they be human or dog).