Overly-competitive parents have been around since the time of the Aztecs, when moms and dads attending ritualistic ballgames would often sacrifice themselves to the gods if their children didn't show enough hustle (parents of winning children, however, took their kids to Pizza Hut).

In the centuries since, many people still fail to realize that putting too much stake into a game when you're not actually on the field can be ruinous. Just ask Pete Rose. Because it can sometimes be difficult to tell when you're crossing a line, here are some signs that you just might be a little too into the game:

• You award yourself the game ball from time to time.

• You occasionally catch yourself absentmindedly doodling disabled lists with every player's name but your kid.

• You bring your own Gatorade cooler to throw.

• You eat all the kids' orange slices at halftime and spike the peels.

• The voodoo doll you made of your child has started to fall apart from overuse.

• You call your wife the equipment manager and make her figure out how to fit your folding chair into its little carrying sleeve.

• You wear shin pads under your jeans, just in case.