In 1782, he first appeared at Sadler's Wells, in the arduous character of a monkey; and here he was fortunate enough to excite as much approbation, as he had previously elicited in the part of clown at Drury Lane. He immediately became a member of the regular company at this theatre, as he had done at the other; and here he remained (one season only excepted) until the termination of his professional life, forty-nine years afterwards. Now that he had made, or rather that his father had made for him, two engagements, by which he was bound to appear at two theatres on the same evening, and at very nearly the same time, his labours began in earnest. They would have been arduous for a man, much more so for a child; and it will be obvious, that if at any one portion of his life his gains were very great, the actual toil both of mind and body by which they were purchased was at least equally so. The stage-stricken young gentlemen who hang about Sadler's Wells, and Astley's, and the Surrey, and private theatres of all kinds, and who long to embrace the theatrical profession because it is "so easy," little dream of all the anxieties and hardships, and privations and sorrows, which make the sum of most actors' lives. We have already remarked that the father of Grimaldi was an eccentric man; he appears to have been peculiarly eccentric, and rather unpleasantly so, in the correction of his son. The child being bred up to play all kinds of fantastic tricks, was as much a clown, a monkey, or anything else that was droll and ridiculous, off the stage, as on it; and being incited thereto by the occupants of the green-room, used to skip and tumble about as much for their diversion as that of the public. All this was carefully concealed from the father, who, whenever he did happen to observe any of the child's pranks, always administered the same punishment--a sound thrashing; terminating in his being lifted up by the hair of the head, and stuck in a corner, whence his father, with a severe countenance and awful voice, would tell him "to venture to move at his peril." Venture to move, however, he did, for no sooner would the father disappear, than all the cries and tears of the boy would disappear too; and with many of those winks and grins which afterwards became so popular, he would recommence his pantomime with greater vigour than ever; indeed, nothing could ever stop him but the cry of "Joe! Joe! here's your father!" upon which the boy would dart back into the old corner, and begin crying again as if he had never left off.