Oh yeah, it sucked big time! I always hear those horror stories about passengers stuck in a plane on the tarmac for 3 - 4 hours and wonder how they survive.
I would go batshit crazy! Thank God it's never happened to me. I travel 50% of the time for my job, and I've got a feeling that it will happen to me one day, it's just a matter of time. I'd rather die in a plane crash, at least that would be over more quickly.