This celebrated leader of fashion, who rejoiced in the sobriquets of "Romeo" and "Diamond," obtained the former from his love of amateur acting, and the latter from his great wealth obtained from the West Indies. He was likewise noted by his splendid curricle, the body of which was in the form of a cockleshell, bearing the cock-bird as his crest; and the harness of the horses was mounted with metal figures of the same bird, with which got associated the motto of "Whilst we live, we'll crow." By his amateur performances he shared with young Betty (Roscius) the admiration of the town. A writer in the _New Monthly Magazine_, 1827, pleasantly describes one of these performances:--"Never shall I forget his representation of Lothario (some sixty years since), at the Haymarket Theatre, for his own pleasure, as he accurately termed it; and certainly the then rising fame of Liston was greatly endangered by his Barbadoes rival. Never had Garrick or Kemble in their best times so largely excited the public attention and curiosity. The very remotest nooks of the galleries were filled by fashion; while in a stage-box sat the performer's notorious friend, the Baron Ferdinand Geramb. "Coates's lean Quixotic form being duly clothed in velvets and in silks, and his bonnet highly fraught with diamonds (whence his appellation), his entrance on the stage was greeted by so general a _crowing_ (in allusion to the large cocks, which as his crest adorned his harness), that the angry and affronted Lothario drew his sword upon the audience, and actually challenged the rude and boisterous tenants of the galleries, _seriatim_ or _en masse_, to combat on the stage. Solemn silence, as the consequence of mock fear, immediately succeeded. The great actor, after the overture had ceased, amused himself for some time with the Baron ere he condescended to indulge the wishes of an anxiously expectant audience. "At length he commenced: his appeals to the heart were made by the application of the left hand so disproportionately lower down than 'the seat of life' has been supposed to be placed; his contracted pronunciation of the word 'breach,' and other new readings and actings, kept the house in a right joyous humour, until the climax of all mirth was attained by the dying scene of that gallant, gay Lothario: