Customer: 'All my files I saved last week to my C: drive are missing!'
Tech Support: 'Do you remember what directory you first saved them in?'

Customer: 'No, I don't . I just know it was on my C: drive.'
Tech Support: 'Ok, I'll walk you through how to find the files.'

Customer: 'I wouldn't think I would be losing files on this computer. I just had the hard drive replaced in it yesterday.'