Could someone clarify how Flash works? I've seen som theories thrown around and my questions might have been answered inside some post which I can't seem to find.

1) If a mob is under the effect of Flash and I use Flash again (while the mob is still under the effect of Flash), does it stack enmity-wise? From what I gather it doesn't and do I then need to wait it out (debuff) to use it again if I want additional enmity?

2) It seems like continues use of Flash makes the debuff shorter or is it just some mobs that are more resistant to it and thus the timer is shorter? I.e does the mob become more resistant to it with continues use?

Can't test anything atm as I'm posting from work.

Cheers!