They're Not Laughing Now.

In the Times Magnus Linklater writes:

Can you imagine Bremner allowing a line like “Yo, Blair, how are ya doin’?” into his script? He’d be laughed off stage.

Rory Bremner is a comedian, so isn't that kind of the idea? Bob Monkhouse's old joke springs to mind:

They laughed when I said I wanted to be a comedian. Well they're not laughing now!