By Tim Healey/DFP StaffWhen the No. 9 Boston University men’s hockey team hosts Rensselaer Polytechnic Institute at Agganis Arena Friday night, it may have more on its mind than just another non-conference January matchup. Some Terriers — the upperclassmen — will be thinking about last time.The Engineers downed the visiting Terriers 4-1 on Dec. 11, 2010 in a game marked by BU getting “jobbed so bad by the referees it was unbelievable,” as BU head coach Jack Parker put it, and a third-period free-for-all that resulted in several ejections.Parker said his players probably wouldn’t remember specifics from the game.Senior defenseman Sean Escobedo indicated otherwise.