This is one of the reasons I love the internet. If not for the net, I would have never seen a bull named Clem who's now on the loose and running wild in St. Louis, Missouri right now.
Who let the cows out? I realize that's not the name of the song, but there was a real heifer pursuit that played itself out in a busy Illinois city neighborhood after some students tried to bring animals to school as part of an organized prank. The key word is "tried".