And again, it was shown that Brian was already well aware of the fact that in the original order that was placed for the spider that the spider was going to someone other than the person making the order and it was simply a combined order to save on shipping and other costs.
So the OP was the first buyer, plain and simple. And it was already stated that yes, he did sell the snake to someone else already, who he has been working with and will refund as soon as he receives some compensation from Brian, if not before then since that is his customer, not Brian's. Brian's responsibility is to the OP, not the current owner as the current owner, from what I've seen appears to be working with the OP on the issue.
Seeing a post by the current owner might help clear this up once and for all so there can be no more questions of who owes who. But either way, the OP was still the one that obtained the snake from Brian and Brian was made aware of that fact upon purchase. If we're going to say that in situations like this, the refunds have to go all the way down the line for everyone that ever owned the snake then can you imagine how complicated it would get?
OP is owner #1, current owner is #2, and the OP already stated he would be refunding/compensating the current owner as that is HIS customer, not Brian's. The OP is Brian's customer.