I have never liked fans who change allegiances at the drop of a hat. If someone in my extended family played for the Packers, I would not become a Packer fan (just typing that makes me cringe). When Darin Erstad was drafted by the Angels and made it the majors, a bunch of people jumped on the Angles bandwagon. Not just wishing Erstad the best in his career, but jumping on the bandwagon 1000%. That has always annoyed me as a sports fan.