It was nice that Oz didn't become some 'misunderstood' anti-hero with a heart of gold.
It started to look like Oz was going to prove everyone wrong, with them saying he would do or say anything to save his own skin. They developed the relationship with his mom, he has a girlfriend (sort of), the backstory with his brothers was sort of like "Oh, it was just an accident, he didn't mean to"
But nope, they were right. He's pretty much a psychopath.
I'd be interested in hearing more from the writers, or Colin, about what they feel is Penguin's deal. He seemed to have an 'unhealthy' love for his mother, with the implication that he left his brothers for dead, so he could have his mother all to himself.
Bring on Batman II, so I can see Penguin get the snot beat out of him.
But what was up with people getting stabbed in the gut and just walking it off? Maroni got shanked, then escaped from Blackgate and survived another few days with no apparent ill effects. Oz got stabbed with a broken bottle and just stapled himself back together.