My fly fishing friend John

Was talking to John--he fishes the Cumberland lots-the smokies often---
I told him I was putting in at Burkesville and floating down the the Cumberland River ending in Salinas Tennessee.I asked "how do you know when your in Tennessee John said "you'll hear the NCAA tournament being played on all those Tennessee folks radios.
John said he's coming to Tennessee for a little Smokies fly fishing on the 18'th--I said"Are you going watch the NIT".John said"what an NIT,a mayfly??