Years ago i told my wife that I wanted a pug. One morning I opened my front door to retrieve the paper, and standing on my steps was a pug! I turned to the wife and calmly asked if she'd gotten me a pug and when she replied, "No, why?" I knew that she hadn't. Upon closer inspection, the portly pug was wearing a Harley Davidson collar, so definitely not intended for me. I didn't want him to get hurt so I carried him (after determining that he was friendly) around the neighborhood, going to doors where I knew the owners had bikes. After about 10 minutes, that guy got too heavy to carry so I set him down. I followed him until he sprinted into a garage. Figuring that was his home, I turned to leave. Just then a minivan pulled up w/a sobbing woman and kids. She was very happy to see her dog. She'd been driving all over looking for him.
She should have walked around the neighborhood instead of driving, but oh well.
Another incident: I had my eldest with me when I was going to an auto parts store. A guy parked right by the entrance as we were leaving and dropped his wallet. I had my son (around 6 at the time) pick it up and take it to the counter so it could be returned to the owner. I watched and made sure that none of the money (lots of bills, unsure of denomination) was lost as she paged the driver of XX vehicle. When the man approached, we left. My son wanted to know why he couldn't keep the money. I told him it was because it wasn't his to keep.