Also consider that a chaotic M-U might just as easily sleep the players and cut their throats, as do the same to a bunch of goblins. Probably more profitable to take out the players too... :) I leveled up a first level magic-user once in a one-shot, adventuring with some 3rd level characters, by re...
A note to plunderers: Dopey has some strange items on his person. Gatekeeper's pectacles, goblin ledger, buckles, signet ring, mysterious iron serpents ring, very small plate armor, etc.