Funniest Lost Dog Poster We've Ever Seen

CHICAGO (CBS) -- It's a feeling most dog owners experience at one point or another: the fear of losing your pup. Thankfully, the poster for the lost dog above, which has been appearing all over Chicago, is (obviously) fake.

Bill Murray fans will probably notice that the breed of dog in this poster (see the full-size poster at KHITSChicago.com) isn't from the retriever or pit bull families. No, this breed is a bit more demonic and fictional. Appearing in the 1984 comedy Ghostbusters, this dog is what Rick Moranis' character "Vince" turns into. He is known as "The Gatekeeper" and he doesn't look well trained.

So who does this beastly dog belong to? The Windy City Ghostbusters, of course. They're a group dedicated to making and wearing their own Ghostbusters costumes. They're not just about having fun. Any proceeds the Windy City Ghostbusters makes goes right to charity.

Read more about the Windy City Ghostbusters and their hilarious poster here.