I can't wait until someone employs the "libruls-do-it-too" rationalization. After all, there were a few college students who threw pies and tomatoes at Ann Coulter and Karl Rove over the last 8 years.
Because everybody knows the equation:
(rotten tomatoes + thrown pies) X liberals = (thrown bricks + cutting gas lines) X (death threats X threats to families) / health care bill
Though I would use this as an example of why more "liberals" need to embrace the 2nd Amendment more robustly.