He was concerned in another duel, which made some stir at the time (1775). There was a young fellow named Walker, the son of a plumber and painter, whose father left him a large fortune, and Daisy Walker, as he was called, became a cornet in Burgoyne’s Light Dragoons. His fortune soon went in gambling, and he had to retire from the service, whilst his guardians looked into his affairs. At that time Fitzgerald held a bill of his for three thousand pounds, and pressed for payment. It was ultimately compromised, and, on receipt of five hundred pounds, he gave up the bill. Subsequently Daisy Walker made some lucky bets, and Fitzgerald at once became clamourous for payment of two thousand five hundred pounds. Walker denied his liability, saying the matter was settled by the payment of five hundred pounds and the return of the bill; but this was not Fitzgerald’s view of the matter, and he dunned young Walker whenever he met him, and at last, at Ascot races, he cut him across the face with his cane. Of course, in those days, there could be but one course to be taken, and a challenge was sent, and accepted. Walker, as being the insulted party, should fire first. They duly met, and the distance was fixed at ten paces, but the second who measured the ground took such strides that it was virtually twelve paces. Walker fired, and his antagonist was unhurt. Fitzgerald, who had the whole etiquette of the duello at his finger’s ends, then stepped forward and apologised for having struck Walker--which apology was accepted. But, as soon as this ceremony was finished, Fitzgerald again began dunning for his £2,500, and, when he was told that it was not owing, he prepared to take his shot, offering to bet £1,000 that he hit his adversary. The pistol missed fire, and he calmly chipped the flint, reiterating his offer to bet. He fired, and the ball grazed Walker in the arm just below the shoulder, but did not wound him, and they left the field. Subsequently, however, Fitzgerald declared that Walker was ‘papered,’ _i.e._, protected in some way, and published an account of the duel in a pamphlet, addressed to the Jockey Club. To this Walker replied, and Fitzgerald followed up with another pamphlet, in which he says:-- ‘I should most certainly have fixed it at _six_ instead of _ten_ paces. My predilection for that admeasurement of ground is founded upon the strictest principles of humanity. For I know, from trials successively repeated, twenty times one after the other, I can, at that distance, hit any part of the human body to a _line_, which, possibly you may know, is only the _twelfth part of an inch_.’