So USC’s offered season-ticket holders the “dream experience” of running out of the Coliseum tunnel for $1,500 and getting a helmet autographed by Steve Sarkisian for $750. Surely, there must be more. How much to get a pain killer? Or experience a concussion? Or here’s a better one: How much to deflate a football? $25,000. That’s what it cost the last time the equipment manager did it for Matt Barkley.