Dodge from behind

I am really having problems with a druid feral tank, I really want to know the real answer and it's simple.

Feral Druids can dodge from behind???


NOTE: In PVE enviroment, I don't know if there is a change in mechanics in PVP
No player can dodge an attack coming from behind.
So if a feral tanks based especially on agility, with 24% dodge (without any extra buffs) getting hit from behind it's not good...



NOTE: I know the answer, only need others opinions to be as much close 100% sure.
If you want to be sure simply stand behind some low level mobs and see how you won't dodge their attacks. Trust us you won't dodge from the rear.
If they're getting hit from behind then, in most cases, they're doing it wrong.