Dan the Engineer is known as the "Knock-knock King" in our building. And here he is with the Covid-19 humor.
ROCKY & LISSA VIDEO: Engineer Dan's Got Jokes!

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By Rocky & Lissa
Apr 27, 2020, 10:26 AM ET

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Dan the Engineer is known as the "Knock-knock King" in our building. And here he is with the Covid-19 humor.