Dance like no one’s watching… is probably the motto for this granddad-to-be. Luckily for him (and us), Justin Hall placed a hidden camera to capture his in-laws’ expression when they found out there was a little one two months along the way. This adorable and hilarious reaction is so close to making the case for hidden cameras at every surprise event.

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What’s your funny reaction story? Share your memories with others in the comments below!

— Christal Yuen