You still couldn't have payed for your premium membership on this site without a credit card or checking account. As TJ so pointedly noted in both of the posts on here, red bugs are very easily dealt with. I've gotten them from a local reefer (suspect it might've even been TJ) but I'll continue to buy from him in the future, and I pay a lot more to him per inch of coral than you did with Pat. The fact is, if you get red bugs in your tank, you should've quarantined better. Links have been provided for you showing you how to rid your tank of red bugs, and honestly, that shouldn't be Pat's responsibility to begin with. You (I assume) inspected the coral in person, and gladly agreed to the price. If he had shipped it all to you, and it was not as advertised, you'd have a case, but you saw with your own eyes exactly what you were purchasing. I suspect that you know enough to talk about what might be an AEFW in a way that makes you seem ignorant (or at least naive) and victimized by Pat's practices. If you really are this naive, then its at least as likely you got flatworms or whatever you now have from other purchases (LR, other corals, etc) as from Pat, and actually more so since his system had been running for quite some time and wouldn't have experienced the success and growth with major pest control issues.
Somebody doesn't sell a $15k plus system for pennies on the dollar because they have something that can be treated with Interceptor and Flatworm exit. At the very least, he would've held onto his tank and lights and skimmer instead of selling 5 MH fixtures, bulbs, and ballasts for $450 an a 125 gallon tank for $150, so your insinuations (either here or on the other thread) that he sold his livestock knowing full well that it was infected with stuff (and actually BECAUSE he knew it was infected) just doesn't really make any sense given the facts of the situation.
Basically, I see it this way:
1.) You owe the man $500. You ought to pay him what he owes you. Pay him through paypal, or pay one of your friends who does have a checking account who you trust to cut Pat a $500 check. I know I'm assuming that you have one such friend, but it seems awfully likely to me that this would be a feasible option.
2.) You are either naive (and could've gotten flatworms, red bugs, etc.) from anywhere or you are trying to find an excuse not to pay. I hope the first condition is true, in which case its not fair for you to blame one person for your current struggles. You need to adopt a more rigorous QT procedure from now on, and since you obviously don't have one currently, the pests could've come from literally anywhere.
3.) You purchased everything as it was at the time of purchase. You inspected it in person before taking it, agreed to a price and a payment schedule which should have been followed. I doubt if there was an agreement (written or verbal) that you would not have to pay if certain pests began to appear in your tank.
4.) Many of us know Pat, and many others of us owe a lot to him because of what a stand-up guy he has been in our club. You can't expect to imply that he has dealt with you unfairly without a severe backlash.
5.) I don't believe that anyone in our club would follow through on any threat of violence. Words spoken in anger can often totally misrepresent our intents/feelings. I feel very confident, knowing almost everyone involved in this discussion for the Pittsburgh club personally, that you, and your family are completely safe; and that honestly nobody even wants to involve your family in this situation at all. Again I'm sure that perhaps it had been implied in some angry words, but those words are empty when it comes to what will actually happen.
6. I think it's fair to say that already, regardless of the outcome of this situation, there are many people on this message board who wouldn't want to deal with you because of the way events have transpired. This is out of your control, and is in no way a proper excuse to drag things out any more.
7. To insinuate, imply, or come right out and say that Pat knowing sold you damaged goods does not jive with the facts of the situation (why sell equipment when its just the livestock that's faulty) or our collective experiences of Pat. I think this is where people (I'll include myself in this) feel that we need to defend him, because your attack on his integrity, at least in all of our experiences, is not just unfair and ridiculous, but something that needs to be addressed.
There, I've said my peace...and hopefully you can work out something (like talking to a friend as I suggested) to get them to cut Pat a check. If you want to drive to my town (in Gibsonia) and meet me, I will be happy to accept $500 cash, and get it to Pat immediately, and to give you a written document (notorized at your expense should you require it) stating that you have given me the money with the understanding that it will be delivered to Pat in fulfillment of the $500 that you owe him for his livestock.