Box heads

I like to think that on Planet Swordland we only breed smart and intelligent children, but I am starting to wonder...
Today, Hotrod and Princess walked around with empty diaper boxes over their heads.  Now this sounds funny and cute, which it is, until they stop paying attention and start running right into walls.  Of course, then you really have to laugh!  To add to the curious and questionable behavior, Hotrod beat two hammers on the sides of the box.  Yes, he still had it on his head!  I really questioned his intelligence at this point.  What got me though, as he was walking and banging he fell right over a small chair!  Ok, I am not supposed to laugh as I give boo boo kisses, but come on!!!