Didn't something like this happen 10-15 yrs ago when there were several linebackers around who were a little on the wacko side. I thought I heard about a fan trying to get onto the field and getting closelined by one of these linebackers.

Didn't hear any stories about fans on the field after that.

>http://sports.espn.go.com/nfl/news/story?id=2208778
>
>This gives new meaning to the concept of "Home field advantage"