I apologize, I completely forgot to post this on Friday. There was a mystery something smelly in the classroom, so we did a little lesson on body changes and how it's OK if your shoes smell, but sometimes we have to wash them. That's why some students might have come home with their inside shoes to wash. When I came in this morning, The smell was gone… It may have been a pair of shoes or maybe just an old sandwich that someone found when we cleaned out our backpacks and cubbies. Thanks for your help with this!