Harold tries to teach Albert about the economics of running a business. He then ends up buying 400 sets of false teeth hoping to make a killing. When they don't sell, he takes their last £10.00 and tries again, this time bringing home 400 World War 2 gas masks.

• Ray Galton
• Alan Simpson

• Joanna Lumley
• Harry H. Corbett
• J.G. Devlin