Pair of shoes?

It is the strangest thing happening in our house. We have a shoe monster that is eating all of Emma's shoes. TOday I was trying to get ready for my MOPS (mother of preschool) meeting. WE are late as usual, and all I need to find to leave the house is a pair of shoes. Not even the cutest shoes she owns, but any that match. I found 5 shoes that all did not have a match. How does that happen?? Finally, I found a match under the couch, but this is the question. Where in the world are the other shoes? Emma is in a new phase of throwing things in our trash cans. I sure hope the matches to all the other 4 single shoes are not in the Enid Landfill:) Sweet precious Emma.