In which circumstance may a firefighter use sick leave?

Using sick leave is primarily intended for circumstances where a firefighter is unable to work due to illness or injury. However, in many departments, including fire departments, sick leave can also cover situations where an employee requires time off to care for a family member, such as a child, due to illness or medical appointments. This aligns with the concept of sick leave providing support not just for the employee's health but also for the health of immediate family members, which is likely why parental leave falls under acceptable use.

Personal vacations, going to the movies, and shopping do not relate to the inability to perform work duties due to health issues, which is the core purpose of sick leave. These activities do not typically warrant sick leave, as they do not involve health-related reasons that the leave is intended to cover. Thus, using sick leave for parental leave is a proper and valid use of that time.