Not Lost
Some individuals merely put up signs for show. No matter what they actually lost, it doesn’t matter. He merely wanted to extol the virtues of Gilligan, his dog. And, let’s face it, he sounds like a pretty great dog just on the sound of this sign. On the other side, what if this prompted someone to kidnap your cherished pet? Who wouldn’t want a pet as wonderful as Gilligan as their own?
Not So Friendly
The fact that signs like this one are so prevalent online suggests that most people who create them are probably making jokes. This sign’s text is identical to that of the other one on the list. Possums aren’t extremely dangerous (did you know they can’t contract rabies? ), so they shouldn’t be at too much risk even if the person who made this sign is unaware.