unpaid leaves

Managing absenteeism and dealing with the associated costs are among the most difficult things employers face. Accordingly, many employers try to incentivize employees to improve their attendance by providing bonuses based on meeting attendance thresholds. Seems simple enough. However, what if an employee is off work on a disability leave? That employee is off work through no fault of his/her own yet otherwise had perfect attendance. Should such an employee be able to claim the attendance bonus?