A "busman's holiday" is a phrase used to describe a vacation or leisure activity that involves doing work-related tasks. The origins of the phrase go back to the days of horse-drawn buses in Britain, where bus drivers would still drive their own horses for fun on their days off. Synonyms for this phrase include "working vacation," "homework holiday," "professional retreat," and "professional development trip." These phrases all relate to the idea of taking time off from work, but still incorporating work-related activities or goals into the time off. While a busman's holiday may not sound like a traditional vacation, it can still offer a refreshing change of pace and an opportunity for professional growth.