Mark Watson continues his quest to improve the world.

As broadcast live in November 2011 - he invites the audience join in via tweets and messages to work out how we can all make the world a better place.

He's nimbly assisted by:

Tim Key
Tom Basden.

This time Mark looks at "Passion"

Passion encompasses some of our most human qualities: emotion, energy desire. But is it a dangerous thing? In their hit Desire, U2 sang: 'Desire!/Desire!' But that isn't hugely helpful, that's just repeating the word over and over again. So we'll go into a bit more detail.

We are all passionate about something, whether it's sex, personal satisfaction, or sexy personal satisfaction. Without passion we're inert.

But with passion, we can sometimes be all too ert. Where do we draw the line between normal passions, and being one of these guys like Othello who let themselves down and kill a girl over a hanky?

Producer: Lianne Coop.

First broadcast on BBC Radio 4 in November 2011. Show less