Not long after his return to England, a crazy notion entered the head of Lord Camelford, that he would go to Paris and assassinate some, if not all, of the Directory. Accordingly, on the night of Friday, 18th January, 1799, he proceeded by coach to Dover, where he arrived on the following morning, and put up at the City of London Inn. After breakfast he walked on the pier, and engaged a boat to convey him to Deal. He came to terms with a boatman named Adams, and then confided to him that he desired to be conveyed not to Deal but to Calais, where he purposed disposing of some watches and other trinkets, and finally bargained with him to be put across for twelve guineas. But his lordship's conduct and manner of speech were so odd, that Adams deemed it advisable to speak of the matter to Mr. Newport, the collector. Newport advised that Adams and his brother should keep the appointment, which was for six o'clock that evening, when he would be there and investigate the affair. Accordingly, when Lord Camelford entered the boat, he was arrested, and required to go with Newport to the Secretary of State's office in London. They found on him, when taken, a brace of pistols and a long, two-edged dagger. On Saturday, the 18th January, at eleven at night, he was put in a post-chaise, and escorted by Newport and the two Adamses to the Duke of Portland's office, where he was recognized. A Privy Council was at once summoned, and Mr. Pitt despatched a messenger to Lord Camelford's brother-in-law, Lord Grenville, to come at once to town. His lordship was examined along with Newport and the two Adamses, and the Council, satisfied that he was crazy, discharged him. Not long after this, he brought notice upon himself in another sort of matter. On the night of the 2nd April, 1799, during the representation of the farce _The Devil to Pay_, at Drury Lane Theatre, a riot took place in the box-lobby, occasioned by the entrance of some gentlemen in a state of intoxication, who began to demolish the chandeliers, when Lord Camelford, as one of the ringleaders, was taken into custody, charged by a Mr. Humphries with having knocked him down repeatedly and nearly beaten out one of his eyes. For this he was sued at the Court of King's Bench, and was condemned to pay £500. In town Lord Camelford was incessantly embroiled with the watchmen, and was either had up before the magistrates, or else obliged to bribe the constables to let him off. He was a terror and a nuisance to quiet citizens passing through the streets at night. In 1801, when the return of peace was celebrated by a general illumination, no persuasions of his landlord, a grocer in New Bond Street, could induce him to have lights placed in the windows of his apartments.