Examples:

• I was surprised when my distant cousin darkened my door without any prior notice.
• I'd rather not have my ex-boyfriend darken my door again.
• This financial crisis has darkened our door and caused us a lot of trouble.
• The news of the company's bankruptcy darkened our door and left us feeling devastated.
• My mother-in-law keeps darkening our door with her unsolicited advice.
• My neighbor darkened my door with a strange request to borrow my car.
• Just as I was about to finish my work, my annoying neighbor darkened my door.
• A debt collector darkened our door and demanded payment for an old bill.
• I'm tired of those pesky salesmen darkening my door every other day.
• The police darkened our door with a warrant and accused us of theft.
• A sudden illness darkened our door and disrupted our plans.
• The company's downsizing darkened our door and left us jobless.
• A tragic accident darkened our door and filled our hearts with sorrow.
• A unexpected job offer darkened our door and opened up new possibilities.
• A charming stranger darkened our door and stole my heart.
• A pleasant surprise darkened our door and brightened our day.
• An old friend darkened our door and brought back fond memories.
• A new challenge darkened our door and tested our abilities.
• A groundbreaking discovery darkened our door and changed the course of history.
• A ghost from the past darkened our door and brought up old wounds.
• Never darken my door again!
• I made sure he'll never dark our door again.