If you have a single Wizard as your CC in Ring of Fire and I am controlling 20-30 mobs at once with Otto's Sphere of Dancing or Web (because the group can't kill them fast enough and would wipe in an instant without the CC), with an Ice Storm ticking away on everything, it's up to the rest of the group to make sure that I stay alive, so that all those mobs don't break free and kill you.

So, when I have a red named harrying, stunning, slowing, spamming and otherwise interfering with me, it is the priority of the group to stop beating on dancing trash and get that thing off me when I ask you three times. Next time, I won't waste my energy typing, or sucking down SP pots because half my spells aren't landing as I'm being constantly tripped and interrupted by something that a few melee swings or an Intimidate button would fix.