Ralphie started doing this a couple of weeks after I brought him home. The vet said that it could be the Giardia that he had (an intestinal parasite). He actually farted audibly at the vets office once. Me and the vet tech were laughing our butts off. I had NEVER heard a dog fart where you could actually hear it
Once he was free of the Giardia he never did it again thank God...my boyfriend couldn't take it anymore.