Various reasons I suppose. My uncle was an avid rugby fan and always resented the fact that after being top dog in the town in the 50's, Latics started getting 20,000 plus crowds in the early 60's. He always vowed Rugby would get to Wembley first so he wasn't exactly happy in 1990 either. And then when we got the the First Division..............
For all that he was a smashing bloke, just chose the wrong club !