I know I’m not alone in thinking that beating Notre Dame in football is one of the best Purdue experiences, but having seen that you’re a reversible jersey guy for ND I get that you can’t understand that this is our in state football rivalry. Basketball is different - the key to rivalry (and blood rival is just lame) is that there has to be a storied history between the two teams. IU has never sustained any success in football, but Purdue has a reputation as the Spoilermakers built on upset wins over dominant top 5 teams (most in the nation) and that is built on several big wins over ND. My personal favorite was the 1997 win that propelled Tillers success at Purdue.