Have you ever told someone what you do for a living and discovered they have a lot of crazy ideas about your work flow? A lot of jobs seem straightforward, but if you haven't done them, you probably shouldn't assume you know what they're like.
This long Twitter chain shows that most of the world is determined to be oblivious, and drag us all with them. It's kind of a nesting doll of rude things to say to someone after they open up to you. First people share what they do for a job, then they get the most common response. Like comedian Josh Gondelman, who indicates that when he tells people he's professionally funny, they try to make him laugh. With racism!