I don't but my brother swears he has seen one. Our family had just moved into a new house. A cube-shaped villa built in the 1950s. The house have two stories and a basement and it was designed for two families. One family per story. My father is a handyman so he rebuilt the whole house for one family. This meant getting rid of the top floor kitchen for example. In the kitchen my father built a bedroom. The bedroom my brother was going to get. (We are three brothers and we each got one.)
The previous owner had died in the house. It was an elderly woman and at the time of her death she was living alone in this rather large building. She hadn't been able to subrent the ground floor.
After we had been living in the house for a year or so my brother swore that he had heard someone slammering with kitchen utensils, pots and pans in his room. It couldn't be the regular kitchen since that is situated far away from his room. He awoke many nights after that due to the slammering.
At one time when my brother was late home, way past his curfew, he saw someone in his window looking at him as he arrived. It was a femal figure but he couldn't make it out. When he entered the house he was expecting to be yelled at for being late but the house was empty. The rest of the family arrived home after half an hour.
I think he is full of it.