You do not need a lecture. You need a judgment call.
If you want to use someone else’s video, audio, image, quote, screenshot, article excerpt, or broadcast segment, the real question is not whether you can invent a clever reason. The real question is whether the way you are using it changes the purpose, adds real commentary, and avoids simply substituting for the original.
That is where most people get themselves into trouble. They think “short” means safe. It does not. They think credit fixes it. It does not. They think good intentions matter. Usually not.
What matters is what you are taking, why you are using it, how much you are using, how central it is to the new work, and whether your use competes with the original in any meaningful way.
Sometimes the answer is yes. Sometimes the answer is no. Sometimes the answer is yes, but not like that.
If you are about to publish and want a second set of eyes before you do, start with the intake form and tell me exactly what you want to use, where it came from, and where you plan to put it.