Like Father, Like Son

I believe that some behaviors are learned and others you inherit.  Both Andrew and Ryker like to sleep with their hands clasped behind their head when they're very tired.  I'll find them like this in the middle of the night when they're sound asleep.  There is no way Ryker is consciously copying his father at this time.  Sometimes he'll sit in his car seat with his hands behind his head just before he falls asleep.