There can be no greater rival for Chicago this season than Texas. With only 18 losses, it felt like Texas made up at least a third of them. In fact they were undefeated against Chicago until very late in the season and they are the primary reason Chicago didn't end first. As such the prank would have to be special. Something to be as inconvenient to them as they were to us! Although they're the Texas Renegades. do you know what Texas is more known for than renegades and outlaws? Cows. Tons and tons of cows. As such that'd be the centerpiece to the prank. While the team is off preparing for the playoffs, Chicago players would sneak in and ship in loads of cows. They'd unleash them into the Texas arena. The ice, the concessions, all would be absolutely filled with cows. We're talking about dozens of them, just chilling and chewing on things and left for Texas to clean up!