My oldest son and my brother attended rival colleges. Not during the same time period. My brother is not that much younger than I am (just don't tell him)! They seem to enjoy finding shirts for one another that keep the rivalry going. Here my brother is modeling his recent birthday present from my son. I would qualify it as a rather friendly rival shirt.
PS For those readers not familiar with Piggly Wiggly it was America's first independently owned and operated franchise of self-service grocery stores.
Go Blue Devils...Go Tarheels! Love you Bill and Steve, Jr.