This is hilarious. I wish that I would have thought of something like this on April Fool's Day.

A man pulls this prank off without any effort at all. He is a human chair, and when people sit on him, he scares the daylights out of them. Of course, there's a camera that has it all caught.

On his YouTube channel, the genius behind this human chair prank says, "We did several (attempts) where all I whispered, 'You smell nice....' etc... without really moving... We also did version where we grabbed people in slow motion, etc. However, these reactions were best this day".