His side of the story was told loud and clear.
p.19>

http://www.getbig.com/boards/index.php?topic=571143.450
Yes it was... Thanks for that reminder, Princess.
He basically said "I don't care if I owe someone money. I'm not paying them."
Shizzo, you know it's about principal.
If you say you are going to do something, you do it. That's all. It doesn't matter if it's 600 bucks, 6000 bucks, 600000 bucks, or 6 bucks.
If you owe someone money, you pay them. Sure, I would tell Walter that 600 bucks is hardly a lot of money to get some piece of shit out of his life, but it doesn't change the fact that the money is owed.
Groink is a piece of shit for not paying his debts. Feel free to tell him I said so.
You are only as good as your word, and Groinks word is shit.