The duration of sick leave taken affects the salary. Some sick calls receive three days’ pay, two weeks of paid leave, and so on. An illness provides no notice or condition for proper planning. You’re OK one day, walmart call off number then you’re probably hospitalized the next. The duration of sick leave taken affects the salary. Some sick calls receive three days’ pay, two weeks of paid leave, and so on. An illness provides no notice or condition for proper planning. You’re OK one day, then you’re probably hospitalized the next.