This happens far too often for my sanity.

Client: I need this website done right away. It’s absolutely urgent, so get to it!

The client then proceeds to ignore all my requests for additional details, design instructions, product specs, etc. Weeks later, I inevitably get something like this:

Client: Are you done yet?

Me: I didn’t have all the details and you didn’t send me the things I asked for, so no.

Client: What the hell? I thought I told you this is an urgent project!

Source: Clients from Hell