Do people who used to be in marching band listen to Don McLean's song, "American Pie", and get goosebumps when he sings:
"And the players tried to take the field, but the marching band refused to yield."
I bet that is every band nerd's dream. In reality, they would be pummeled by the football players. (See, eg, the famous Cal/Stanford play, when the band came onto the field early, and the Cal player who scored the winning TD absolutely drilled a trombone player in the end zone.) The link here will show you what I'm talking about.
http://hkn.eecs.berkeley.edu/~cje/