Mysterious Laugher Does Not Sympathize With Chan Ho Park's Stomach Ailments (UPDATE)

Chan Ho Park recently gave his reason for being slightly worse than usual: a bout of diarrhea. This admission (repeated several times) drew gales of laughter (also repeated) from an unseen source. Who is this secret gut-bustee? A Parenthood fan? [ ZonerSports.com]

Update: Mystery Solved!