They use those in the army for many statistics since they are as captive an audience as one can get I should think. (drmalcolmkendrick.org)
Also most guys can handle being turned down by a lady in front of her one friend, but most don't want a large captive audience watching as it happens. (beyondblackwhite.com)
It is a witty and direct challenge to the notion of the artist's identity and institutional regulations imposed upon the viewing of art and the behaviour of a supposedly captive audience. (devcas.jynk.net)