sliding doors Silly dog musters up courage to walk through invisible door (video) Carla Sinclair

black labs Watch: Smart dog doesn't waste a drop of water when it drinks from faucet Carla Sinclair

doggy doors Dog is baffled when her two friends magically walk through a "wall" Carla Sinclair

magic harmonicas Watch: A man plays a harmonica and his dog jumps into hilarious happy dance Carla Sinclair

doggos Dog insists on taking a dump outdoors as tornado weather swirls around Carla Sinclair

doggos Suspicious dog barks loudly at leaf that's minding its own business (video) Carla Sinclair

doggos A compilation of Golden Retriever videos that will make you laugh Jason Weisberger

self-imposed time-outs When two dogs are asked who made the mess, one can't help but admit to the crime in hilarious video Carla Sinclair

Old dogs teaching new tricks Watch an older dog teach a young pup where the doggy door is Carla Sinclair

golden retrievers Dog tries to stay calm but can't hide sneer when puppy plays with its toy Carla Sinclair

doggos Watch an excited dog pretend it's a vacuum cleaner when it sees a new rug Carla Sinclair

doggos Watch: A crying baby is hilariously mocked by a small dog Carla Sinclair

spaniels Watch: Dogs make the funniest faces when standing in 50-59 mph wind Carla Sinclair

doggos Do other dogs sleep like this one does? Carla Sinclair

living vicariously Watch: A retired racing dog living vicariously through his successors Jess Sabine

doggos This silly dog cries to get inside – not realizing the glass door is actually wide open Carla Sinclair

doggos Watch: This adorable 300-pound Tibetan mastiff trying to climb into car looks more bear than dog Carla Sinclair

australian shepherds Watch this trusting dog fall backwards onto its owner's arms Carla Sinclair

german shepherds This German Shepherd reacts to drug words like "cocaine" in the most hysterical way Carla Sinclair

doggos Dog persuades newly adopted friend to play [VIDEO] Xeni Jardin