Your nose is snotty

Granny and Grandpa took care of Dash for the day…

From: Grandpa
Subject: “Your nose is snotty”

After we stood around swinging Dash and watching him climb and slide I carried him across the snowy part to the cleared path to speed the way back home. This is what he said as I carried him. So I replied something like: so is yours Mr. Pot calling the kettle black.