With how aggro/emity works in this game.. If you're salty a dps pulled ahead of you, you should stop tanking. Literally 1 or 2 aoe gcd's keeps aggro now. It takes 3 boss auto's at 2.5gcd to kill a dps maybe 4 to 5 if dps uses a defensive. So as a tank literally 1 to 2 single target abilities will take aggro on a boss. Tanking has become considerably easier throughout the years. Letting a dps pull ahead and bring the add's to you speeds up the dungeon. The faster you get the dungeon done the faster you are at grinding. If you don't like dps pulling ahead of you, there are trust where NPC's hold your hand for you.