My dogs haven't inquired yet, but there is, indeed, a "Take Your Dog to Work Day," June 26, 2015. My working breed dogs, with all the best qualities of Shepherds, Labradors and Retrievers, would naturally wish to assist me at work. For this reason alone, I'm sure they'd better stay at home, no matter what the day.
If I ask them to fetch homework, it is entirely possible they might eat it in the most proverbial sense. I occasionally ask my overzealous Sheprador pup if he's seen my missing pencil. He's too busy chomping to answer.
My dogs might corral students into the room for me. It'd be a good thing 'til they make a dive for the ankles.