Fluid aura is a great way to piss off a tank/dps. Use it wisely
Even on mobs that are coming after you. At least in my experience, low-level tanking, it goes like this:
Start pull --> overzealous healer starts cure spam on first tap --> mob strips before flash/overpower --> I run after mob to hit it with enmity --> fluid aura pushes it out of range again --> "why can't you keep agro?" --> RAGE.