Insensitive

We have come to the conclusion, over the last three and a half months, that Leonard feels no pain.  He is constantly falling down and causing bodily harm to himself.  Occasionally, he'll even run full speed into a wall... just because he doesn't stop.  He ran past me a few minutes ago, caught his leg on the ottoman, and went flying through the air in sort of a flip.  After he hit the ground with a thud, he looked up at me and laughed.  I think there have been maybe three times that he has cried due to an injury, but at this point, I am willing to attribute that to being scared more than hurt.  Maybe he just has a higher threshold for pain than anyone... ever?  Who knows really.  We're going to go to the park today or tomorrow... he'll probably fall off the top of a slide and then get up and run back up it to go again.