Two years ago I photographed a wedding for free. At the time I'd been shooting weddings for 3 years and hadn't planned on photographing the wedding, but when I arrived as a guest with a camera I discovered they had not hired a photographer so I took lots and lots of photos. The wedding was for a childhood neighbor who I had not seen in many years. When he got the disc he never called or wrote a thank you note. It was a big lesson for me. Now the sister of the free wedding recipiant wants me to photographer her wedding - for free. The wedding is on a Saturday in July. I emailed her a very kind reply letting her know that I'd be happy to give her a huge discount (80%) and photograph the wedding $250 (prints for sale at $5 with a disc if they purchase $350 in prints). She was shocked that I would charge her because we grew up next door to each other and I photographed her brothers wedding for free. She then asked if I wouldn't mind just attending as a guest and taking photos. Any tips on how I can very politely let her know that I'm not going to work for free? Her parents still live next door to my parents so I do not want to just blow her off. Any compromises that I'm not thinking of? Do other people have this problem? I was considering telling her that if the date was not booked by June I'd agree to shoot for $100 which is essentially the cost of the deprecation of my gear.