Once upon a time, in 2011, a number of TV nooze reporters, live and on the air, uncontrollably spouted gibberish. It also happened to Judge Judy while she was taping a show. They rushed her to the hospital for extensive testing, but could find no cause for why, for a brief interval, nothing would come out of her mouth but nonsense.
https://leeduigon.com/2015/01/21/when-tv-personalities-spout-gibberish/
This happened to different people in different locations. The only thing they had in common was that they were all on television at the moment. But then that was what made it so visible. If it happened to somebody at home, who would ever know?
To this day, the mystery has not been solved.