During a meeting with a client who had requested an advert to be designed for a local magazine I got on to talking about using their current logos. I explained about vectorised logos and what files I would need from them to use their logo, and both he and his business partner/wife kept nodding and telling me they knew what I was on about. I asked them whether they had their two logos in .pdf format, they said "of course we do, we'll email them over tonight".
Well to my surprise these files turned out to be one small photograph of the outside of their shop, and one low quality .jpg just about the size of the avatars on this forum...
I got back in touch and tried to explain what I needed from them in basic terms, they then asked me to just "Copy and paste from the pics we've already sent you. Then just make them bigger. It's easy!"
...Three weeks later and I've managed to get a .pdf of one of their previous ads, and got the logos from there.
Oh, and did I mention they're also the kind of people that say "It should only take you ten minutes!" whenever they request a major change?!
Can't complain too much though, work is hard to come by around these parts!