Client: we need a report that <unclear requirements>
Me: alright, here's what you requested.
Client: that's not what I asked for.
Inner me: THAT'S EXACTLY WHAT YOU ASKED FOR!! WHAT THE FUCKING FUCK REEEEEEEEEEE!!!!

Yep.
This has happened so often that now I spell out exactly what they ask for when they ask for it. And I keep a record of it so they can't change history. Works pretty well.

On the more extreme end, one of my previous bosses even went so far as to disagree with a printed email, from him, and said that's not what happened. I brandished it in his face and called him ridiculous. He didn't like me after that.

@Root yep.. lesson learned, get everything in writing

@2lazy2debug its better to let them write it down, you write it down in your own words and let them write down they confirm it.