Via the Indy Star:

Dean Asbury was fishing with his father Sunday night near the Harrison Bridge in Lafayette (Indiana), looking for catfish, when Asbury pulled a piranha from the fishing hole.

The 21-year-old Lafayette man said he had no idea what kind of fish it was at first.

“My dad actually stuck his thumb in its mouth, because we didn’t know what it was,” Asbury said. “It bit down on him and he said, ‘It’s got teeth.’ ”

Maybe piranha’s are attracted by the stench of the Wabash River? Or maybe it was a prank on Purdue by those pesky IU kids?