Definitely when Rick was sent down.
I felt terrible for him being booed on opening night before he even played a second, but if I ever have the chance to boo him while he's on the ice in his goalie equipment in order to play or sit on the bench for the NYI (which I don't think he will again at this point), I'd give it to him loud and clear. We went on a run right after he got sent down and, to me and everyone else with basic knowledge of the Islanders, that just proves the guy was a cancer to this team. No coincidence. Adios, Rick! Don't let the door hit you.
Maybe now he and Yashin can start a clothing line together!