Victoria Hannan looks at the lives of London's cabbies.

Brought to you by Hailo, the taxi app. Download free from iTunes and Google Play.

• 

  Bill
  Bill’s been a cabbie for 12 years. The most interesting passenger he’s ever had was an escaped psychiatric patient who apparently ran away every Saturday under the guise of buying a newspaper. Bill dropped him off next to a police officer when he refused to pay.