Wit in the Commons

On 'They Work for You', there was this lively exchange on Thursday:

Charles Walker (Broxbourne, Conservative)

On a point of order, Mr. Speaker. During his response to my question, the Leader of the House invited me to visit his constituency. As I am a new Member, could you advise me how I could go about organising that?

Michael Martin (Speaker)

The hon. Gentleman should go to the Travel Office and get a British Rail timetable.