Unlikely: Zambian teachers being attacked by horny invisible witches or something...

Strange story of the day:

The traditional leader said the teachers have complained of sleepless nights and bad dreams allegedly caused by wizards and witches.
“The male teachers complained that they have been having sex with women they cannot see. This has been happening to them for about three weeks,” he said.
Chief Sinadambwe said the same incidents were being experienced by female teachers.
“I received a complaint from a female teacher of Makaba Primary School who told me what had happened to her on Friday.
“She said while sleeping next to her husband, an invisible man undressed her and had sex with her,” he said.
He said when she woke up, she found herself naked and her nightdress and underwear were on the floor.
Chief Sinadambwe said when the woman asked her husband if he had intercourse with her late in the night, he expressed ignorance.