Let me get this right Bob. You come on a City forum and moan that a staunch City fan shows a dislike for another team? Football is tribal, and irration dislike of other teams is commonplace. I'm not saying Pam has a problem with Chelsea but why would that be abnormal?
I hate Leeds. Behind Man Yoo they are the antithesis of everything I dislike about football. It is totally irrational but that is what football can instill in people. Or have you Chelsea boys become such paragons of virtue since loosing the richest club title that this doesn't happen to you?
Remember your clubs role in Ashley Coles transfer? Remember how Mourinho calculatingly targetted officials he perceived could not be influenced so they didn't get Chelsea matches? There are many reasons why some people don't like various clubs.