This one, every time
Me: "Hello, IT"
User: "A client has sent me a video as an attachment and I can't view it"
Me: "Ok, let me remote in... Right. Show me the email... OK, that's a link to a video on a sharing site, not an attachment. That site is blocked during working hours which is why you're getting the message when you click on it..."
User: "Can you unblock it temporarily? This is for an urgent matter"
Me: "Ok, let me know when you've finished watching it and I'll re-block the site"
User: "And I'll be able to print it, right?"
Me: "Sorry, can you run that by me again?"
User: "The video. I can print the video and put it on file"
Me: "Uhhh... You want to print every frame of the video? Or just some static bits when you pause it?"
User: "No, I want the entire video"
Me: "It's 10 minutes long. At 25 frames per second that's 15,000 frames"
User: "It fits on the one web page! Can't I print it to a single page?"