I did not build this client's website. They were transferred to me for ongoing maintenance.
Client: Can you fix the spacing issues on the homepage?
Me: Sure no problem.
I fixed the issues and sent an invoice for 30 min of work + WordPress plugin updates.
Client: Were those spacing issues always there from launch? If so, why should we have to pay to fix them?
Me: I assume they have always been there. I don't know why they weren't fixed before. I did not build the website.
Client: I don't think we should have to pay for that, so can you remove it from the invoice?
Me: Sure (me thinking...if you get off the f**king phone with me and stop wasting my time, I'll credit you the f**king $$).
I essentially just paid a client to leave me alone.