After patrolling the streets of Sidcup , " Henry " , a professional stilt walker who was advertising a London circus called at a cafe for his lunch . Since it is too much trouble to take off his stilts - and put them on again after his meal - he prefers to keep them on , and manages to sit down on a chair which is on a table . Mrs . D . Heath is seen passing him a cup of tea . 30 November 1954