In Philadelphia: Sidney Crosby(notes)
Since Sid the Kid entered the league, no fan base has spewed more hate in his direction than the Philly faithful. From the signs to the Wachovia Center organist accompanying the crowd in their "Crosby Sucks" chants, outside of any jersey that isn't orange and black, Crosby's is one that would really cause you to not be able to enjoy yourself. But, basically, if you're not wearing orange and black, you're not going to have a very good time inside Wachovia Center.
That is the only part of the article that says basically. "If you are in this town, DO NOT wear ANY opposing jersey"
rofl