I mean there are way less interesting things to make your whole personality.

Go Bills!

Oh god. This caught me completely off guard and I just laughed so much. Grew up in western NY, understand perfectly!

Got my wife a hat with a buffalo it that is not a Bills hat, not even close if you bother to actually look at it.

When we were in NY last summer she was constantly being asked about football, so much she still hesitates to wear it out now, 2+ states away.