Explemplorary Chaos

Here's the type of thing that most DINKS miss out on. I am trying to have some calming time to myself after a totally depressing day with some reading on Diaspora by Greg Egan and playing the guitar when the 7yr old and his friend tell me I am taking them to the store for snacks then the 13 yr old declares that he has dog poop on his shoe after walking the dog 15 minutes ago. That's 15 minutes of tramping dog poop through the house. I'd like to require shoes be removed at the front door but I personally like keeping my shoes on.