The first post was about unwarranted interrogation tactics using music. Several posters continued in this light-hearted vein until someone decided to throw bombs and make all kinds of ridiculous claims using the usual slogans. There's no arguing with someone so dead set on his view despite abundant evidence to the contrary, all nicely supplied by members here.
So, "knock three times on the ceiling if you want me. Once on the pipe, if the answer is no."