Take your favorite TV show character of all time and put him or her into a different show that you enjoy. The character should be surprised to be in unfamiliar territory, but should interact with the other characters and, if possible, help them solve a problem. You can make up a scene or insert.
You've finally decided it's time to break up with your significant other. You just haven't felt that connection for awhile and know it's time to move on. So you go over to his/her house and, after explaining how you feel, you feel relieved--that is, until your now ex-significant reminds you that it is Valentine's.