The Abonimation Known as WTFWHM

[Kassiekane]

but if the Tank loses a mob because they are not holding aggro on all mobs and it decides to take a stroll and say hello to me then i'd much rather use fluid aura to either push it back towards the Tank's position

This is a valid use of fluid aura...

or push it out the way and sleep it so it can be dealt with later.

...and this isn't. There's no reason to knock it away from tank if you're going to sleep it. The tank can use flash to build enmity on it so that it does not come after you when it wakes up, and the dps won't pull it when it they switch to it.

I've refused to raise somebody but only when they are either dying constantly and wasting my mana from raises or because they are one of those DPS who die constantly...

This is a viable reason not to raise someone. What I was saying in the OP is that some healers just say "f*ck u dps" from the beginning and never planned on healing them from the start.