Ah, don't worry about it, you've been more than generous. Who else got over 5lbs of rub in the exchange? And BTW, your chicken rub, that I had for dinner yesterday, was killer as well. Dare I say as good as, or perhaps even better than the Cookshack chicken rub.
Which brings me to a question, why is almost every single chicken rub I've tried spicy? I like it spicy, but just curious.