Here's my favorite personal story. I was a consultant, brought in on a project on-site at a client's location. This is my first day, and I'm meeting the VP of Marketing.
VP: We need to get these Cognos reports up and running.
Me: Hmm, ok. What can you tell me about these reports?
VP: Mostly that we need them up and running.
Me: Who uses these reports?
VP: Not sure. Ask so-and-so.
Me: What information is on these reports?
VP: Look, let's not get buried in details. We just need these reports up and running, mmm-kay?
I like that: "Test-first requirements analysis." A bit like shooting a monkey into space in an uninsulated tin can to see if there are any problems with that.