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.

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

— Christal Yuen