Philadelphia fans have a much deserved reputation for their impolite behavior, including cheering when opponents are injured and booing Santa Claus. But, this recent display may be their worst-ever. 

During a recent intermission of a Flyers home game against Vancouver, a video called "Hockey Fights Cancer" appeared on the video board. NHL stars such as Sidney Crosby of the Penguins, Jonathan Toews of the Blackhawks and Ryan Miller of the Sabres appeared in the video. Naturally, the fans booed them and their announcement about the fight against cancer. 

Philly fans, you need to get a clue. You cannot boo a cancer ad.