I enjoyed a nice walk despite the wet cold weather ... and my CAT boots got really dirty! But that's why I keep you around ... you'll clean them - with your tongue! Come on, get on the ground and take a close look - there's so much dirt stuck in the deep tread of my boot soles and you'll lick off all of it! You'll slide the tip of your tongue through the deep tread, collect all the mud, dirt and whatever is stuck there in your mouth and swallow it. And you should be thankful that I allow you to clean them this way - I could just stomp out the dirt on your face and trust me, that would be way worse than licking these filthy soles!