Yep, the headline says it all. Giving high fives are pretty instinctive. When someone approaches with their hand in the air, most of the time you'll return with a high five of your own. Well, in this video, the person giving the high five lubed up his palm with Vaseline and those receiving the high five are left with a greasy hand.

This is a pretty harmless prank that will leave anyone laughing their butt off.