Gosh that took me longer to write out than I thought it would, my apologies! I kept getting called away to do stuff xD

Added in another silly little personal headcanon of mine, I always thought that since each Jedi/Sith builds their own saber(s) from scratch that the saber(s) would 'imprint' to that person/wielder and therefore wouldn't be usable by someone else since they would resist following that person's directions almost? Particularly if someone else was trying to use the saber against their original wielder.
Let me know what you think or if you want me to remove/change it! xD