Boston Terriers snort, wheeze, snore, and gargle. And I love the sounds he makes. When I pet him, it almost sounds as if he's purring. But should his gargle get so thick to the point of gagging? He hacks and gags when he gets super excited. I calm him down by talking quietly to him and rubbing on his neck. I just get so afraid that he's choking on his own saliva or something.