I found that on occasional use of some of the Bankster skills (not sure if its insurance fraud or not) can net you roughly 6k or so depending on the level of the dungeon your on. I know that isn't a glitch, but if I use seismic uppercut on the corpse of the monster that gave me the original 6k-ish bonus I can gain 6k per cool down of seismic uppercut. It also stacks depending on how many corpse are lying on the same tile. The easy fix (I'd think so anyway) would be to get rid of all buffs and debuffs after death (which I don't think they were intended to stay there in the first place.) Not even Brax has as many Zorkmids as I do right now.