Title: I do freelance work and offer my clients bug fixes for free (for defects in the software I wrote, that they already paid for). I have a client who for several weeks has been sending me long lists of bugs they find in my software. But for every single issue so far it&#x27;s because other components of their system (written by other developers) are failing. And in some cases it&#x27;s just user error (entering wrong username&#x2F;password). Should I just accept that I spend hours at no charge addressing their concerns? I would feel bad sending back an answer that it&#x27;s not my bug, and then saying they owe me a few hundred dollars.
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