This poor guy was just walking along, doing his job, minding his own business when out of nowhere a BEAR leaps out at him.
As you would expect, the guy turns and legs it, running for his life. He dramtacially falls, rolls and gets back up, and, in his understandable terror, doesn't realise that this bear is kinda funny looking and has a very strange way of walking.
Yup, it's his mate in a bear costume. And his coworkers are almost dying laughing.
Good bear costume, in fairness.