Actually I'd like to chime in and say I've had this happen several times as well. Same symptoms too: If I'm rotating the camera when this happens the camera continues to do so even if I release the stick (similar effect with running) and if I had hit a face button when this started, it continuously repeated the action until the controller uh, came to its senses?

Though mine is without the Windows prompt/sound effect. It's not frequent, but it does happen. I use a Xbox One wired controller.