Dr. Johnson was informed by a mutual friend that Foote was going to produce an impersonation of him on the stage. "What is the price of a cane?" asked the doctor. "Sixpence." "Then," said he, "here is a shilling; go and fetch me the stoutest you can purchase, and tell Mr. Foote that at his first performance I shall visit the theatre, go on the stage, and thrash him soundly."
This was repeated to the mimic, and he deemed it advisable to desist from _this_ impersonation.
In _A Trip to Calais_ he threatened to ridicule the notorious Duchess of Kingston unless bought off. The audacity of his personalities was astounding, where he thought he could use his gift of mimicry without being subject to chastisement. In the _Orators_, 1762, he personated, under the name of Peter Paragraph, a noted printer and publisher and alderman of Dublin, known as One-legged Faulkener. The imitation was perfect. The Irishman brought an action for libel against him, and a trial ensued. But Nemesis of another sort fell on him four years later. In 1766 he was on a visit to Lord Mexborough, where he met the Duke of York, Lord Delaval, and others, when some of the party, wishing to have a little fun with Foote, drew him into conversation on horsemanship, and the comedian boasted "that although he generally preferred the luxury of a post-chaise, he could ride as well as most men he knew." He was urged to join that morning in the chase, and was mounted on a high-spirited, mettlesome horse belonging to the Duke of York, that flung him as soon as he was in the saddle, and his leg was so fractured that it had to be amputated, and its place supplied by one of cork.
The Duke of York was not a little concerned at the part he had taken in this practical joke, and to make what amends he could obtained for him a royal patent to erect a theatre in the city and liberties of Westminster, from the 14th May to the 14th September, during the term of his natural life. This was giving him a fortune at one stroke, and Foote immediately purchased the old premises in the Haymarket and erected a new theatre on the same ground, which was opened in the May following, 1767. He made considerable profits, and lodged twelve hundred pounds at his banker's and kept five hundred in cash.