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

[Hash_Browns]

Everyone's important, but you're kidding yourself if you seriously think a dps can out tank a tank even in normal dungeons. Tanks are there for a reason. The holy trinity is there for a reason. Your mentality is why we have so few tanks in the first place.

A DPS can indeed tank in normal content, it just requires a bit more healing. A DPS may not be able to out-tank a tank, but they can indeed be a replacement.