lame, just stop.  A rogue can use the trinket.  But a raid leader/loot master should have enough sense along with the general raider to know that this should go to a tank first.

However, it can be used in pvp by any melee class fighting another melee class or a hunter for that matter. 

Assuming he has the sense to realize what you're doing and switch to battle stance.

When you see the crossed maces appear over his head, gouge and run lol.