Every week, Bostonist brings you the most viral of Boston videos from the depths of YouTube. Last week, it was a prophetic "Pee Pee Dance" from a Bruins die-hard. Bostonist can only hope this next video does not catch on in the same way. Brought to you by idiotproductions, this little gem makes Bostonist wonder what they're teaching in history classes these days. Who knew the Boston Massacre was started with a "Yo Mamma" joke?......