Once in the 7th month my friend came back from tuition at night. He put his school bag on the empty seat beside him. He saw it moved to another place as if someone or something was sitting on the empty seat.
A friend took a bus one night. He sat on a two seater with a lady with long hair and white gown sitting inside. He fell asleep and woke out and found the lady not there anymore. There was no way the lady could get out without having to ask him to move aside. Unless she could float on air.