You were a little bored. While Karl was working at his desk, collecting something and now and then attracting some fragments of metal or nuts with the help of telekinesis. You look at everything when you finally speak. "Hey, Karl, aren't you a horse?" You ask. "What?" he asked in surprise, turning his head, "Well.. The symbol of my horse, yes, it means.." He started talking when you approached him and put a festive hat on his head, which you found and lowered it down the center of his forehead. "Now you unicorn." You're talking.