The following is from a prompt exercise I wrote in class for 10 minutes.
Prompt: Begin or finish with the following sentence: The door snapped shut.
The door snapped shut.
He was free now. The flight was going to be long, and the break was going to be too short.
The thoughts of seeing his familly, petting his dog, drinking with his friends all night, and being totally immune to any forms of stress for 2 weeks were overwhelming.
"It's the most wonderful time of the year" kept ringing in his ear.
Indeed, the shutting of the door signalled the beginning of the most wonderful time of the year.
"The next time that door snaps shut, however, will mean something very different," he thought.