Senior quotes are part of the end-of-year process for many graduating high school students.

It is one of the few chances left to leave an impression on your peers.

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Triplets at Northwest High School in Fort Worth, Texas, made sure to use it to their advantage, knowing their photos would be next to each other in their yearbook.

Kassidy, Keaton and Kylee Durham used a knock-knock joke to announce their exit:

The photo was posted on Reddit and has nearly 480,000 views.

"My parents thought it was a cute idea, Kassidy told ABC News. "They said it was brilliant."

ABC News reported that the siblings will stay together when they begin attending the University of North Texas in the fall.

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