Client: Hey! Another hi-res image request. Is this something you could squeeze in your schedule today?
Me: Possibly. What do you need?
Client sends a 400kb image.
Me: What do you want me to do with that picture?
Client: Is that easy to do?
Me: That’s not how images work. The original photo needs to be high res. I can’t make a low-res photo high-res.
Client: OK, no worries! thank you
At least she was understanding about it.