One time my dad took me to a Cubs game. I didn't check anything before the game, I just went and on the drive I told him that I would be extremely happy if we saw two things: Greg Maddux and some idiot running on the field. I got my wish that day.
Running on the field is one of my favorite parts of a baseball game because it's something that is distinctly baseball. If you ran onto the court of a basketball game theres a fairly good chance you are going to get the crap beat out of you by a player, in baseball you only have to worry about security guards (added bonus: no gun toting entourages). The best part to me is that when people are doing it they are doing it solely for attention* and they know exactly what is going to happen. Yet, it still happens year after year. I love it.
Have fun out there this weekend. Only five weeks to go.
* Unless they are White Sox fans who only rush the field in attack mode.