Tough Love

How to to get this achievement:

- Go to Shadowfang Keep while 'Love is in the air' event is on
- Clean your way to the main yard. Mobs are lvl 21 as they've always been in that instance. Right before going through the door you'll find a goblin. Talk to him and get a package. Open it. There are 2 scents on it. Apply one of them to you.
- Go into the main yard: The 3 mobs are waiting for you there. They're lvl 82 and elite. You're gonna need a decent tank and healer. I'll recommend to be 5 in the group, although I managed to do it being just 3 (ICC gear).
- Talk to the apothecary: He'll talk back to you and then go hostile. Much of the damage they deal is Nature. The scent you applied onto you will protect you from one of the puddle types. The other will deal serious damage. Move away.

Once the 3 apothecaries are dead, you can loot an epic item and you get a card to be delivered to another goblin right outside the Orgrimmar AH.

The bosses are a reference to the film "The Rock" with

Ed Harris as Brigadier General Francis X. Hummel
Gregory Sporleder as Captain Frye
David Morse as Major Tom Baxter.

Good taste, Blizzard.

http://www.imdb.com/title/tt0117500/

You can queue up for The "Crown Chemical Co." Dungeon from a lvl below the maximum (Max level -1)

For example: In cata: 84
In pandaria: 89
Good Luck :D.