Whats old school about showing respect to your opponent? (Even if you hate them) That's just sportsmanship. You either play with dignity and respect, or you don't.
What's just a "little" trashy and classless? Who decides? Why not have the entire team take dumps on the oppossing logo, and after they virtually wipe their arses, they all flip off the oppossing fans? Its rivalry week. May as well bend over their mascot. Piss on the logo.
For me? If its fine to logo stomp or flag plant? May as well be fine to SPIT in their face. Ohh, but ones worse. Trash is trash. Some may stink more, but its still trash. Why play with trash?
Fans? Have at it.