Back when I had a season ticket I had similar but somehow worse. He was a huge Freddy Eastwood lover. He could do no wrong. When he was on the bench he was ranting from minute one that he should be playing, and would be apoplectic if he didn't look like coming on at the start of the second half. Every time the ball went out of play he'd start chanting "Freddy, Freddy..."
Then as soon as he was on the pitch he'd be maniacally applauding every touch, pass or shot spannered into a defenders legs. If he scored he'd be uncontrollable, yelling "I told you, I told you!!" over and over. It was at this was the point I wanted to smack the shit out of him. And a few more nearby too by the looks on their faces.
The people sat next to him used to say they hated him, once he'd fucked off. Which was bang on 85 mins without fail every game no matter what the situation or score line.
Worst prick I've ever seen at a football match.