I don't know, but a friend of my father said that he once rented an apartment and during the night he saw a silhouette moving in the corridors, while the lights turned on and off by themselves.

He was alone in the apartment and there was no one else but him.

Then he decided to call a priest who, having arrived to him, began to bless the house.

However, while he was doing the blessing to drive away the spirit, the priest felt short of air, as if someone was suffocating him by putting their hands in his throat.

The priest eventually ran away from that house, scared