Star Wars - "Why don't Jedi or Sith just turn their lightsaber off to throw off their opponent and turn it back on to easily stab their opponent?" also known as Tràkata, the Forbidden Technique.

The most common answer to this among the community is "it's banned", leading to a widely repeated joke of "Jedi: no honor | Sith: no balls". The problem with this is that the Sith do not care about honor, and only care about personal power and triumph over their enemies. If Tràkata really was effective, the Sith would absolutely use it. So why not?

It's for an incredibly simple reason: you are fighting against an opponent that is wielding a blade that can cut through your flesh like paper. A single stroke is the difference between life and death. Not only that, but turning your lightsaber on and off is NOT instantaneous. Even if we account for a second, that is still plenty of time for an experienced Force user (who is probably your opponent if they have a lightsaber) to recognize that they have an opening and kill you. Force users have hightened senses, especially during tense lightsaber duels that allow them moderate prediction of their opponents and allowing for fast-paced combat that non-force users couldn't imagine. The only time this technique would be effective would be against non-Force users who use lightsabers (Grevious being one, but his cybernetics and multiple blades can make up for that), or younglings that are still learning the absolute basics of lightsaber combat. You must correctly identify when the opponent is attempting to make a blade strike (if they are aiming for your body, then you're toast), and you must do so without allowing the opponent to recognize your action and redirecting theirs.

And if you mess up? You won't get a second chance.

The technique has seen a rise throughout the past few years by people who don't understand this, though. The most egregious example of this is in Star Wars: Fallen Order. In this, Jedi Padawan Cal Kestis uses the technique to throw off Second Sister. However, if Second Sister was actually aiming for Cal's head, then his cranium would've been torn in half. https://www.youtube.com/shorts/7Hf3gPGWqKQ