This is a light look at what many people in the creative industries experience way too often. I've certainly had my share of similar experiences, receiving comments like, "But if I order three drawings, don't I get a bulk discount?" or "But it will only take you 30 minutes." or "It'll be great promotion for you."
If you're starting out in this business, don't fall for it! Just because you love what you do, doesn't mean it doesn't have value! Of course, creatives have some of the biggest hearts around and often give away more than they should - there's a reason for the stereotype of "starving artist."
Thanks to Bryan Ballinger for the link!