That does indeed suck.I've never been able to live down the fact that I caused us to not get world first Brut.
It was like attempt #5424395r92 at 1am and I knew Comcast was going to shut off my cable at 2:30 to fix the line....except they did it earlier. I DC'd at 98% and when I got back on we had wiped at 4% due to enrage and I was gone the entire attempt and usually was #1. Good times, good times.
Pre-nerf M'uru was retarded and I hated every minute of it.
Pre-nerf M'uru was brutally hard, and having never finished 60 Naxx, it felt good to beat something like that. Plus it really was an execution thing. Once we got the kill, we never really had more than a couple attempts the following weeks. It was very repeatable (the nerf didn't hurt either).