Few things are better than a good, harmless prank.
And this "balancing egg" prank would certainly qualify. In a hilarious video from Sam Wilkinson, a few friends from northern England are seen playing a prank on one of their buddies during the work day.
Essentially, they place an egg on his head with glue on it and tell him to see how good he is at balancing it. When the egg is stuck to his head and he keeps it up for a long period of time, the group of friends begin praising his talent. Then, he slowly comes to a realization... Warning: apparently having an egg on your head makes you curse quite a bit.