It's not easy being a Boston sports fan. We're now used to being winners and expect nothing less. So when we lose, it hurts. And not just sadness you get over the next day. It's a grief that stays with you for a while. The heartbreak that takes you through the five stages of grief: denial, anger, bargaining, depression, acceptance. Sometimes we never make it to the acceptance stage, and it looks like that may be the case for last night's Boston Bruin loss. The Bruins entered the Stanley Cup playoffs with a record-setting season. It was the most successful regular season in NHL history, setting a single-season record for wins, and shattering the 1976-77 Montreal Canadiens' 132 points. Well, all good things must come to an end, as last nigh, the Bruins were eliminated from the playoffs in the first round. They lost to the Florida Panthers 4-3 in overtime in Game 7. Keep in mind, the B's were up 3-1 in the series, which only makes the loss that much more painful. So let's debate, what are the worst Boston sports chokes this century. Here are our pick, in no particular order.