Priced at $40 USD, the Fire TV Stick is a bit more expensive than Google's $35 Chromecast, but $10 cheaper than the already-affordable Roku Streaming Stick âlike other typical set-top boxes, the standard Fire TV is available for $100.
The precise question was: Is a dog's mouth cleaner than a human's? The answer to that is no, too, and basically for the reasons you've already cited. As we all know, dogs aren't particularly fussy about where they put their tongues or what goes into their mouths.
You may have noticed that your dog pants, with its tongue hanging out of its mouth. This is the dog's way of cooling itself down, and the excess saliva or foam is an aid in this procedure. Dogs can also produce thick saliva because they have put something into their mouth which they shouldn't have.