The sad, or funny thing depending on how you look at it, is that I would most certainly be lying if I told you this was the most disgusting thing Little Man ever put in his mouth.
For the record, I did tell them both that we don't put shoes in our mouth. I'm sure they heard me loud and clear since I was both laughing and taking a picture.
I can definitely file this one away in things I didn't expect to have to tell my children not to do or eat. Now I know!