When my dad was in Mexico in his early twenties he got a housekeeping position at a gas company and to make things rosy it was a graveyard shift.
As my dad revealed to me he was the only housekeeper the first night on his job and he thought he was alone, but little did my dad know, he had a buddy or something to keep him company. Everything was running smoothly until it was time to clean the main boss's office. That's when the ghosts started coming out to play!
When he was inside the main boss's office cleaning up he had left the door open when all of a sudden the door slammed! It slammed with such force he literally jumped. After his heart rate went back to normal he headed towards the door to check what had happened. When my dad opened the door and peeked outside into the hall he almost died of heart failure. Every single door in the hallway had been shut by someone or something after he had left every single one of them opened!
My dad got out that office quicker than a shooting star. After relaxing himself he went into the break room to clean it, but he wasn't even there for three minutes when he was being spooked again. Inside the break room was a fridge and as my dad was looking at the fridge it sounded like someone opened the fridge and slammed the door. The only problem is he heard everything clearly but never saw anyone or anything open the fridge.
Again he got out the break room quicker than a shooting star and in the morning when his boss arrived, my dad told him, "Thank you very much for giving me the opportunity to work here, but today is my last day," got paid in cash, walked away, and never looked back.