<p>Paul Merton interviews a variety of guests from the world of comedy and entertainment to find out what they would send to Room 101, as well as the one item they cannot live without.</p><p>In this episode, Hannah Fry tries to convince Paul to send complicated toilet flushes and exams to Room 101, and discusses her particular devotion to a daily ritual that she cannot live without.</p><p>Additional Material: John Irwin and Suki Webster
Produced by Richard Wilson
A Hat Trick production for BBC Radio 4</p>
