Depends on the circumstance. I was beyond fvcking pissed after the Auburn/Ga. Tech game (I was there), and after Auburn lost to LSU I was only mildly pissed. Why? Well, because in one game we played like sh!t, and in the other we missed kicks and a few bounces went the wrong way.
I can always handle a close loss with a modicum of reasonableness, but getting your ass beat I cannot handle.
I also don't like bullsh!t calls or losing to rivals. All in all it really depends on the situation and the team. I'm a pretty fair winner/loser, so I rarely get that upset. I've bet and cheered for too much football to get too upset for more than a few hours or a day, and I'm a massive football fan.