1)Burn bridges
-Wesley decided to neither ignore or accept the friend request from his annoying aunt, because he did not want to burn the bridge.
-Tyler decided not to burn the bridge with his X-boss because he wanted a good recommendation letter.
-Madeline did not want to burn the bridge with her high school rival because she could be useful in the future.
Definition: To act unpleasantly in a situation that you are leaving, ensuring that you'll never be welcome to return.
Etymology: It's based on the military action of burning a bridge you have just crossed to prevent the enemy from crossing it after you.
2)Serve up on platter
-Tracy does no work at all, expecting everything to be served to her on a platter.
-Johnny did not realize he served his little sister on a silver platter to his womanizing friend.
-The controversy garnered by the film literally served them viewers on a silver platter.
Definition: Provide something valuable for nothing.
Etymology: Alluded to being elaborately served at the table from the 1990s