LOL
I had an Assasin/Illusionist (red hair of course) that used to hook for extra cash at low levels. She missed a save on a whimsey trap and shot her three prime requisites up to max, so she was hell on wheels after that. She ran a scam in one of the major cities in my friend's world that spilled over into three other games and caused a inter-world war. She was a real handful! LOL She used to dress as a monk and throw faux healing spells on low level parties while she plundered their coffers and purses. What a b#tch!
We had a great modified version of D&D that we played that worked really well, mana for spellcasters, specialization before the charts came out in D&D, multi-class without the killer restrictions, etc.
But we kind of melded Arduin, D&D, AD&D, Myth and Magic, Dragon Knight, Chivalry, Prindle and a bunch of other RPG gaming systems into what we considered a sensible way to run a game. Why did wizards forget spells after years of studying? Along with all of those other questions like Pewter said above with the thief and such just didn't jibe so we just modified it to begin with and had a great time. Just too many new rules, spells, basic game modifications and sheer volume of reading were the things that killed it for us.
Cheers,
Oskaar