At :30, Tom offers a strange explanation about both why watermelon should not be eaten with a fork and an even more maddening explanation why we all think we should. This is the bit that made me think of I4H. But the rest of the clip offers alarmingly specific methods for the actual eating of watermelon.
At 5:00 and 7:37, he adds stuff to the watermelon that seems to indicate that, as my wife put it, 'someone is off their meds today.'
Edit: Apparently I am not qualified to operate BBCode.