catalyst2 | I don't understand footy fans

We went to the game today and I saw a strange thing that still confuses me. The guy that sat in front of me walked in wearing a Dockers shirt. Just before the game started he changed into a Hawks shirt. He stayed in that for a while and then he changed into back into his Dockers shirt. This continued throughout the game (and it didn't coincide with who was winning or anything like that either). At one stage he was barracking for the Dockers but still had his Hawks shirt on! Even he paused for a second or two at that one!

The Dockers won again too. YAY!