Agree about the ancient cabeceo/mirada, but whether it's relevant nowadays to sparing that unfriendly 'no' is a moot point and depends on the group (we're all friends and acquaintances, so no one needs to play games, especially ladies who don't want to spend an evening ironing chairs). I'd say more that some want to enforce it as an intrinsic aspect of AT - its 'culture'. It marks us out as 'different' (superior, understand the hidden secrets and intricacies, etc). Others just consider AT yet another dance, so such attachments become irrelevant. BsAs is far away in another country.