Thank you so much!
One of the reasons why it is sometimes easy to click on the wrong item to sell is that while exploring, one accumulates a lot of alien and other gear that is worthless for high-level players (except for a handful of coins). So one gets conditioned to click "sell" and pressing "x" several times in a row. In this specific case, my mouse slipped up a bit and I didn't realize it until the game told me that I sold the talisman for 0 coins.
What about making the talisman "equip-able"? One can't sell something that's equipped..., or placing the talisman in the "Premium Items" section? However, this would mean making a special keyboard shortcut to use it in any of these cases :-\
Or just make it non-sellable: remove the sell button for the talisman. I mean, once a player gets it, they would be foolish to purposely sell it, non? I'm a retired software engineer, and I don't think that this would take much coding at all. I could be wrong though. That happens sometimes
Thanks again. You turned a bad morning into a good one for me and I really do appreciate the quick response!