why do dogs rub their faces on a carpet why do dogs roll on their backs how my dog rub his face on the carpet why does my dog dig in the carpet my dog rub his face on the carpet dog rubbing face against the carpet why do dogs roll on their backs how why does my dog rub on the carpet why does my dog rub on the carpet why do dogs rub themselves on the dogs rub themselves on the carpet why do dogs like belly rubs so much