A year ago (almost to the day) I spent several hours working with a realtor on a logo design to be used for a website. I sent several PDF proofs of the logo design (back and forth, change this, make this bigger, make that smaller, etc...), and an estimate for the website and logo design. The website job never happened, and I was never paid for the logo design. I basically just wrote the whole thing off, since no commercial assets were produced. A few days ago, the same realtor emailed me and requested new business cards. (I do their card and brochure design/printing) Attached to the email was a new photo of the realtor, and a PDF of their current real estate sign artwork, with a request to use the logo from the sign on the business cards. The logo is the one I designed and was never paid for. How would you handle this? (personally, I don't care about the money; it's the principle that bothers me) thanks.