What do you do when a person seems to be readying to be preparing to leave the workplace but is not exactly leaving? What would you do if you want to wish him/her a good evening/night but don’t want to, in order not to seem rude? Use the Non-Blocking Goodnight wish!!! Just like a non-blocking system call just tests the condition and gets on with whatever else it needs to do without seeing the event through, you can issue a non-blocking goodnight! Howzzzzzaaat!!! I wished my boss a non-blocking goodnight and continued with my work! It produced a big smile from him too, when I told him what I called my greeting!