Notice the face!
Before we rearranged Charlie's room, I had to fold down the bumper becuase of this very habit of our little one. For some strange reason, I thought I could leave it as is this time around. During nap time yesterday, Charlie spent an hour talking to himself, tickling his toes, rolling around and saying "whooooaaaa" several times. I looked in frequently to check on him. The above is evidence of how I found him! He would strattle the rail and say, "whoooaaaa!" Needless to say, the bumper got folder back down!