I applaud your sense of fairness, but I honestly can't say I would do the same thing. There are no do-overs in life, so why should this be any different? If I list something on Ebay and forget to add a zero in the price, then somebody buys it, I don't get to say "oh sorry, that's $1,000, not $100." Sometimes people need to learn a hard lesson so that they'll always remember to double-check in the future.

Anyway, I guess I'm a "tough love" kind of guy.