Game Mechanics: Mob refresh on spells and melee abilities

[Brut]

Ba-ba-bump.
Is the chain-spamming of stun-spells possible to fix? Found it slightly irritating last night when this Nfp paladin GM woulda just stun me with Holy Might or whatever, then soon as it wore off he'd proceed casting it over and over again to lock me down until he had melee'd me back to bind point. I thought pally stuns have some 15sec recast? Ie. Holy Might says 18 in the recast (altho I dunno if that's some other measure than seconds): http://everquest.allakhazam.com/db/spell.html?spell=123

Edit: And Quid Rilstone at Rathe Mnts had the same habit. Spam stuns nonstop.