Did Big D Encounter a Ghost?

Big D, of Big D and Bubba, was with some friends recently and may have gotten a scare at his friend's office building. While they were in one office, they heard a door being opened to another office down the hall.

Did they encounter a ghostly event or just a harmless prank? Watch and decide for yourself.

(Warning: This video does contain an f-bomb so it is labeled as NSFW)

Hmmm...a door that's locked and can only be opened by a key fob. Only two explanations in my opinion; either the key fob lock has malfunctioned or the office building is haunted.

What do you think?