Born and bred in Oxford, though I haven't lived there since the early 1970s and am nothing if not loyal.
Unfortunately........the very first team I supported, long before I even watched a football match, was Spurs. (I thought that "Hotspur" was a great name for a team.) Of course, I was a glory hunter--this was 1960 or so, when I was 11 and they had a fabulous team. And I still support them against everyone except the Mighty Yellows. I started going to Oxford games a year or so later and they were in my blood from then on. Just to continue the confession, however--I also support Grêmio in Brasil. You can't spend as much time as I do in Porto Alegre without supporting either them or their equivalent of the scum (Internacional). The first game I saw in Brasil was Grêmio vs. Palmeiras, and that was all I needed to become a Gremista.
All that being said, everything stops for Oxford games--I never schedule classes or a meeting when a game is on, have missed department meetings in order to listen to or watch a game, and my heart is yellow.
Will you forgive me now?