Just a short guide for people who are maybe new to the game or just happened to forget these things occur
1. You have a pet as a hunter. Now you want to dismiss it but you don't want to lose loyalty, so what are you to do? You could: A) Die or B) do something much easier.
Although dying is fun, let's guess you picked option B. All you have to do is put your pet on stay, run off until it disappears and BAM there you go.
Ok so not much of a tip =/ but hey let's say you have the same issue on your warlock. Maybe you accidentally summon your succubus instead of your voidwalker. You follow the same trick, get a free shard, and then summon what you needed.
Speaking of warlocks, since someone asked me this once, what is the use of Hellfire?
Well it's simple. I read someone crying on forums "OMG make it where it doesn't hurt you." That right there made me mad. Warlocks have that move for one reason, whether Blizzard wanted this or not. Let's say you see an incoming wipe ahead in whatever you are doing and you know there is NO WAY you can survive. You can either sit there like an idiot, or life tap till you are almost dead and hellfire the rest out.
By committing suicide you save yourself the durability loss and the pain of a higher repair bill. Might not sound like a lot, but 2-3 wipes thats 20-30% more durability you have, meaning the difference between green, yellow, and red armor.
Again I realize it's nothing spectacular that I posted, but some people honestly don't know these. So if you flame me saying "NOOB post" then ask yourself. When you first started did you know all of these?