Hate speech that does not involve a captive audience would not fall within the scope of such a regulation.
Theatre foyers have wall space and a captive audience.
Johnny maintains a presence in the household, occasionally appearing to the benefits of free meals and the captive audience that the estranged adolescents provide at the kitchen table.
Finally, we might consider restricting hate speech to speech that is suitably hard to avoid and so involves a captive audience.
They are a captive audience, let us make the most of them.
Personal and political agendas were often bound up together, and a captive audience over a dinner table was too good an opportunity to pass up.
This hucksterism speaks to a captive audience in industrialized societies that increasingly appears to believe that something can and should always be 'done' to counter disease and death.
Children are a captive audience—even in these days—in their classrooms.