Dennis McClung is like a Boy Scout on steroids preparing for the end of the world, which he predicts will happen Dec. 21, 2012.

After working a decade at Home Depot, the 31-year-old Mesa, Ariz., handyman can build just about anything. And now he has engaged his 25-year-old wife, Danielle, and their two young children in getting ready for the apocalypse.

The children, ages 3 and 5, make a game of putting on their gas masks and protective clothing in preparation for whatever natural or man-made disaster might strike.

“My son likes to put on the big nose mask, and my daughter likes to wear her elephant mask,” McClung told ABCNews.com.

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