What is the deal with Marco methodically retying his laces at least once during each and every game he plays? Usually it is during the run of play, but Sunday it was just before his PK. I've seen him do it twice during matches, meaning that the first time didn't get the job done. Since making sure your laces are tied is one of the first things you teach 6-year olds, I'm assuming that this is a time-wasting technique taught at that Bolivian academy Marco attended. Any thoughts?