People should not overstay their welcome as a guest.
Rachel is visiting a friend's house for dinner and her friend has work in the morning.
Rachel wants to enjoy herself.
Rachel makes sure to catch up with her friend over the meal and leaves soon after they finish eating, so that her friend can get enough sleep.
Rachel lingers at her friend's house well after the meal is complete and into the night because she is enjoying the conversations.
Rachel's friend enjoys Rachel's visit and gets a good night's rest which leaves her ready for the work day.
Rachel's friend is too polite to ask her to leave and ends up losing sleep which makes her work performance suffer the next day.