I've been tellin stories that happened in many places, now its karaoke.
RedBox to be specific.

This happened to my dad's colleague.

He ( dad's colleague) went to Redbox during happy hour. Not sure which Redbox is it.
Anyway he went with 7 of his colleagues. So there are 8 of them singing, drinking and having fun. After they decide to call it a day, he asked for the bill.
When he looked at the bill, he was shocked that why they have counted 9 person.
There are only 8 people in the room.
So he asked the manager to come.
He asked why they counted 9 person.
The manager bring him to the security room and show him the cctv footage of his room.
Other then 7 of his friends and him, he saw another person sitting at the corner but all these while they were only 8 person in the room.
He paid the bill without further questions.
Guess they are everywhere eh..