Rough Day in the Crib

This was such a strange occurrence and has never happened before. After Baron wakes up from his nap in the afternoon and since Rob and I both work from home, we have Baron play in his crib so that we can get some more work done. This particular day, was just like all of the others, I added the toys and left him alone all while I am down in my office and can hear him playing and talking on the baby monitor. After about 20 mins of playing I noticed that I hadn't heard anything and ran upstairs frantically. I walked in and saw this below...