College rivalries are the absolute best, and one of the most hateful is Ohio State and Michigan.
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The rivalry between the Buckeyes and Wolverines goes back more than a century, but even in an old rivalry the schools are finding new ways to take jabs at the other. Take Ohio State's College of Veterinary Medicine, for example. When it came time to upgrade their dog walking area, they purchased brand new Michigan branded fire hydrants for the dogs to pee on.
Maybe Michigan can counter this by purchasing Ohio State litter boxes or something.