Healers who rescue pull tanks into mobs.

[Goji1639]

What you do as tank, is say at the start of the dungeon “I’m going to do large pulls” and then go ahead and do it. If you die, then you adjust the speed. While leveling the four tanks to 80 in dungeons, I didn’t have any complaints when I did this, and I didn’t get yanked around by healers.
Rescue can be a pretty useful skill though, I have had healers yank me out of areas that would have killed me, and those healers get my coms for it.

So, you say you're going to large pull, do it, then die to start off every run. Sounds like fun.

If I'm barely ilvl appropriate for the dungeon and not familiar with it I'm probably going to pull small. Tank sets the pace; that's just how it is. If the healer doesn't like the pace he can speak up, and if he asks for big pulls he'd better not suck.