I was reading on the yahoo news that Max the dognapped Maltese was found in Chicago, months after being stolen from his home in Florida.  He was found because he had a microchip in his neck, which led to his owner being found and contacted.  There was no information about how Max was actually found, whether he was wandering the streets, or what exactly happened.  I do wish that information had been provided. 

I can remember when I was younger that there were rumors going around that people dognapped pets in order to sell them to labs where they would be experimented on.  I never found out for sure if that was true or not.  But I will say that it makes a lot of sense nowadays to get any pet microchipped, just in case they get lost or stolen!  The microchip will help the pet get home again if the pet is ever taken to a vet or shelter.