A previous client has the source files, and wants some "small changes" made for free. These changes would probably take me 15 min. max, but the entire reason they wanted the source files was so they could update them as needed without paying me. I had a lot of misgivings about giving them the source files in the first place, but they pressed for them and to keep the relationship going smoothly, I gave them up.
What's a tactful way to handle this? Charge $x per change? Tell them to do it themselves per their own directives? It's possible that more of these changes would be coming through in the future, because the client has no idea how to use ID. I've even told them they can make these types of changes in Acrobat, which would be way easier than using ID for them - but they seem to ignore that bit every time.