Just wondering about speaker cables

Had a crazy thought, not an uncommon phenomena these days.Can you use more than one set of speaker cables at a time? Not talking about bi-wiring, I am talking about connecting two cables to the amp and to the speaker using the same post. My thought is if a cable has a certain characteristic that you like (Tight high end) and another cable has something different (More bass response) could you run them together to try and achieve the best of both worlds? Both cables are the same length.
Would this create some kind of feedback loop or overload the amp or speaker?