You are raising three young children as a single parent while also working full time. You're talking to a coworker who says that it must be hard for you. It is, but you're able to survive. You say this in response.
You're going on vacation. You want to leave a message on your e-mail that lets people know that you're not at work. You write this in your out-of-office message.
“Don’t feel obligated to stay late. Once you’re done with whatever you're working on, you’re free to leave.”
There's a new employee working under you. It's late in the work day, but most people are still working. You explain to the new person that she doesn't have to stay late.
You're starting a business. You need a bank account, so you walk into a bank and say this to an employee who's sitting at the customer service desk.