I have to deal with their shit constantly as live i by the beltway, doesn't help that there's 100 purple jerseys for every 1 red one. But yeah pats fans are definitely up there just not as annoying in my book.
Cool story - I can't speak for the authenticity of that video, but when I was in High School and the Bills were in their Jim Kelly Heyday there was a kid at my school that would get similarly worked up during the Bills games to the point that his parents made him walk around the neighborhood during the games. Luckily he lived close enough to me that I was able to give him the dreaded "Thumbs Down" as he marched by after this play:
His anguished screams were very similar to the dude in that video.
Loved the first one when the kid goes: "Daddy are you done?" and the part in 3 where the daughter looks at her dad like he is nuts...I wonder how much money he had riding on the team.
I think it's real..I had a roommate in college that was so into the Steelers he would act like that....when they lost one of their big games he ripped my TV off the wall and the cable along with it and threw it out our window.