This Shark Attack Prank Is So SCARY, But Grandma’s Reaction Is HILARIOUS!

I've always been scared of sharks, so this video seriously freaked me out. I feel so bad for the unsuspecting grandmother, who got caught on camera as part of an elaborate shark attack prank while she was checking out the exhibits at the International Spy Museum in Washington, D.C.

This granny got a BIG surprise when she taped against the glass and fell backwards in fright when she thought she was about to be attacked by a shark. OMG. After she realizes she's safe, the woman laughs off the prank as her family chuckles in the background.

What would you do in this situation? Tell us and be sure to SHARE this video.