These animals may often quarrel, but cats and dogs have at least one thing in common:
They aren't always on their best behavior. Or anything that resembles their best behavior.
Recently, we ran down 27 naughty cats who have been publicly shamed by their owners; and now we're here to let those felines know they aren't alone.
Some canines eat thongs. Others attack their fellow pets. And still others stare so long at their owners in the shower that it's downright freaky.
Can you relate to any of these pet problems? Click through the following photo gallery and try not to burst out laughing at each sign and affiliated puppy face: