Even with perfect UX, these kind of "user errors" will still happen. I wonder if there is any recourse available? So far it seems like you can either hope the p

Even with perfect UX, these kind of "user errors" will still happen. I wonder if there is any recourse available? So far it seems like you can either hope the person on the other end will give you something back (unlikely) or convince the entire Bitcoin chain to fork to void your transaction (even less likely).