Wiped 30+ time on Instructor Razuvius. In one night.
Regularly walking out of Naxx with a repair bill of 1k+
You need one of those motivational posters for Determination made with your group's picture. Or some Anafranil (don't worry I could use some too).

I haven't done anything cool like you have, or even close. I really started boxing right before RAF, then did RAF and leveled 80bajillion toons to 60 and burnt myself out. Played solo with my kids until 80 and then got into raiding. Getting burnt out on that so started going after achievements. I Dual-Boxed Heroic Steam Vaults a bajillion times for my CE rep,in a not so cautious fashion. It was fun, and cool for me but its not like I did it at level. I just started 5 boxing again with my pally and 4 RAF shaman. I leveled one of the shaman's enchanting from 1-300 in under 30 minutes, that was Amazing I thought. The fact that 2 of my shaman still had starter gear and nobody had gear higher then SM (two only had earth and fire totems, thank you Colossal Menace !) and could kill anything in the outlands was suprising, but not really amazing.

Edit:
Oh yeah at 61, still only 2 full sets of totems, many empty gear slots and white level 7 boots the four of them CRUSHED a Skulled alliance toon wandering through HFP. That amazed me.