Growl

A word of advice for every hunter: please toggle this off whenever you queue in the Random Dungeon Finder.

Changed in 5.0.4 to act as a true taunt and should now really always be turned off by default in instances.

I am still baffled as to why they don't include Growl in a pet's actionbar by default considering how it is the single most important pet ability to toggle off and on again when moving from solo play to group pve... especially considering that pets' basic attack is given a slot on the actionbar, an ability that you never have any cause to toggle off ever for any reason. As a new player, I did literally dozens of dungeons (during Cata, this was less of an issue then) and caused hundreds of players much frustration before anybody took the time to tell me to open up my spellbook, click the pet tab, find "Growl" and left-click to turn it off of auto-cast in dungeons. Up until that point I had been cursed out plenty, but if anybody realized exactly what I was doing wrong, they didn't or couldn't explain it to me. A tutorial consisting of a single sentence could fix it all, there are friggin pet battle tutorials in the game now but this extremely basic game mechanic that is neither explained nor intuitive apparently doesn't warrant the same treatment.