First, this is not the exploit that's been posted much already (all kind of skills to lock the ooze down), however, if it's still a repost link it here and I'll delete this topic
Also, I'm not 100% sure if it should be under exploits or guides, but I think it fits better here.
If you tank Professor Putricide right on the spot where the oozes will spawn, all melee+ranged can switch with alttab/macro easily to the add, and dps it down. Now, because you're all stacked up (casters should be in melee range as well) no one will take real damage from the explosion, and since it takes a few seconds for ooze to pick a target, if you got enough dps it won't even explode at all!
Edit: Danke, forgot to mention this is for p1 (still works in p2 but ranged has to get out of meleerange)
-Aldun