To be clear, this $68 guy kept saying, "But you're the dealer!", as if I should be held accountable for the difference. I wish I had asked him that directly. "So, what, you want to tell the guy who bet $80 that he can't bet $80? Or that he CAN bet $80, and everyone else has to call $80, but YOU get some sort of Dealer Error Discount???"
My response to his initial complaint was that if he hadn't tanked, he probably could've got in for $68! But since we corrected it before any action followed, he now had no shot.
This, of course, was a mistake on my part. Sure, it felt good for a sec--but he really dug in from that point on.