So the way I understand it, Paypal obviously tries to get its money back when you owe them something and you're in the red. However, I would be surprised if Paypal had any legal right to your bank account's money. So you can probably just call your bank and tell them that Paypal can go fuck itself so that they don't get a cent. This would be all but guaranteed to get your account banned.
And if you make money on the Internet, having your Paypal banned is probably not the most forward-thinking thing.