After BB's nap yesterday, I entered his room to find a crime scene. I have watched enough CSI episodes to know that I should never touch a crime scene and thereby risk contaminating the evidence. So I called for backup and while I was waiting for help to arrive, I documented the crime scene. The evidence:
Knowing that the room was clean prior to the nap, the culprit was soon apprehended. His motivation: since learning he can leave his bed, he no longer sees the need to go to sleep.