This is pretty funny, but my grandma would kill me if I did this prank to her- assuming she didn't have a heart attack first.

This silly little prank happened at the International Spy Museum in Washington, D.C. The "shark attack" is actually just a prerecorded video that plays on a clear screen that looks like a real shark tank.

The unsuspecting grandmother was told by her grandchildren to 'touch the shark tank' and what happened next clearly "floored" her - lol - she's lucky she didn't have a heart attack or break a hip.

I do have to admit, when the shark 'attacked' I jumped a bit. Had it happened to me in real life, I may or may not have left a small puddle on the floor.

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