Chaotic Good [http://tvtropes.org/pmwiki/pmwiki.php/Main/ChaoticGood] with Kleptomaniac Hero [http://tvtropes.org/pmwiki/pmwiki.php/Main/KleptomaniacHero] tendecies.
I'm going to do everything in my power to help those in need, and I'd be more than willing to break the law to do so, but don't expect me to pass up an opportunity to recieve a reward afterwords, and if I'm not presented with a reward, don't be surprised when you realise that your pockets have gotten noticably lighter after I've left.
Hey, I'm working my ass off and risking my life to save the damn world here, you can spare a few damn gold coins and/or cans of beans and/or dishes to help me buy a new set of chainmail armour so that I may have an easier time not getting killed while I'm defending your little backwater town from Satan's Hellspawn, and if you won't give it to me willingly, well, then I'll just have to take it, preferably when you're not looking.
Hey, if you're not working with me, you're working against me, after all.