Bad mistake, you always have to be extra careful when you are behind enemy lines!
My nephew, against my admonitions, wore his Yankee jersey to Fenway and after getting pelted with beer, food and language that would make a sailor blush the cops threw him out after the 8th inning. They told him that first it was easier to toss him then then the entire section and that they were actually doing him a favor as it could get real ugly once the game ended.
Rick