The name of the bull shark in Lake Michigan named for the story by
H. P. Lovecraft, an urban legend with teeth going back before the dinosaurs. Some cases being related of
a Bull Shark also found in Lake Erie too, okay the short story "Yest Ye Become One" becomes even more frightening of other cases of this --
WGN in Chicago did a blog entry asking the question. The light blue blog reblogged this making smart ass remarks about how Chicago managed to gain a new pet. Takes what Sharknado and implies it was leftover from that.
By the way; you may not want to put domestic
abusers or child sex offenders in a boat with a hole drilled in it within
the water's of
Lake Michigan. You may never know when an urban legend with Flesh and Teeth comes up doing a bite and run, did we mention we gave him a name. His name is Dagon.