The Married Women’s Sex Partyresponsibilities of adulthood can be stressful, which is why it's important for grownups to play from time to time.

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A team of engineers at SGS Engineering released their inner big kids when they built a track in their office. The fun project combined their twin loves of engineering and race cars.

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Here's how the day went down.

First, they drew up a carefully calculated plan.

Original image has been replaced. Credit: Mashable

They laid out all of their parts.

Original image has been replaced. Credit: Mashable

Next came the build.

Original image has been replaced. Credit: Mashable Original image has been replaced. Credit: Mashable

Then came the fun part -- running the race car around the track.

Original image has been replaced. Credit: Mashable Original image has been replaced. Credit: Mashable

Check out the sweet video of the engineers at play below:

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