I was doing Crota's End back before the center strategy became popular. We were on the left side and I had the pleasure of handling the boomers. All of a sudden I hear a loud "BOOM!" and my Warlock is flying across the room at mach 2 and he smashes his brains all over the wall on the other side. Crota summons his oversoul and we all wipe. The moral of the story is don't shoulder charge your teammates.