Agree. I’m not a legal expert but I’m sure the court would take the side of an employee in such cases. Treating vacation as only a treat for the employee’s body that must rest is nonsense. When you take vacation to work as caregiver for your family member or to improve quality of your life with some home project, or even to dedicate time to your hobby that may be a physical challenge but offers you spiritual fulfillment is perfectly normal. Nobody shall be able to deny you that.