it appears that some music band or bands went so far as to record songs that, when played backwards, you could hear the devil speaking secret messages. of course, every one had a cassette player or an 8 track machine that could play backwards, otherwise...you were out of luck.
And then there was that scary thing that happened if you played a MS Windows CD.......It installed Windows!!!!!
I'm Riffing. People usually stop me when I'm riffing. Or carry on without me. That's also an option.