 Although he was recalled to his regiment in 1810 for service in Spain, he was unable to attend due to recurring bouts of malaria, and spent much of the period between 1809 and 1814 in hospitals or his father's home in Stalbridge, especially after Wellington had decreed that no men who served in Walcheren were to be sent to the Peninsula as they were unfit for further service.Those few months when he was able to live normally he spent in London with Veterans Battalions of unfit and wounded men, including numerous French deserters.Since Harris was unfit to rejoin his unit in the Hundred Days campaign in 1815, the War Office withdrew his pension leaving Harris with no choice but to reenter the work force as a cobbler, which trade he plied in London.