Running onto the field.
It's a great thrill for those who have big enough guts to actually do it, but more often than not, that drunken run takes a turn for the worst once security catches up to you.
That's when the show really starts.
With few people (if any) ever getting away with it, fans who witness these field rushers usually see some funny stuff, with people getting tossed to the ground, getting tazed or, yes, even players getting involved.
So cheers to you field rushers, we love seeing you get jacked up.