California 法律规定必须有sick leave, 这是从7/1/2015开始的。看起来这人是个麻烦，你应该找个律师问问

Employees will accrue one hour of paid sick leave for every 30 hours worked. Paidsick leave must carry over from year to year, but employers can place a cap on accrual of 48 hours (or six days). Use of sick leave. Employers can limit an employee's use of sick leave to 24 hours (or three days) per year.