Don't forget that those howlers can also inflict Howler Madness from within their cages just before the fight starts.
I've had newbs I was running with talk to the boss and initiate the fight before two of the members stopped being helpless from that one.
I had to hightail out of there with DDoor grabbing a few soulstones.
To add to the general Dungeon Alert mania, one quest, just ONE, comes to mind, because it generates the alert in almost all the bigger rooms: Reclamation. Hit one dwarf, their whole family pops out of a corner, with their dogs and ancestors to boot.