The 'unwritten rule' for non-tank pulls in dungeons

[Hash_Browns]

Like I said. If dps pulls and aggro goes to healer, ill take the mobs immediately off, and usually use cover on the healer.

Tank dictates the pulls, it has been this way since the dawn of mmos concerning on the move content. Camp content, ala EQ and FFXi, it depends on what classes you had with you.

I disagree.
Tanks don't get to decide how fast the dungeon goes because they are the tank.