Zanzibar's Popo Bawa monster

Popo Bawa is the name of a nasty, raping, bat-like monster feared by many people in Tanzania. From Reuter's:
Although no one ever has seen it, belief in the monster and his unnatural lust is so strong that entire villages will sleep out of doors for protection: Popo Bawa (Swahili for Bat's Wing) prefers to attack behind closed doors at night...

"We heard a rustling on the roof," recalls Asha Saleh, in her late 50s, in Machomanne village near Pemba's main town of Chake Chake. "I felt someone fondling me. I felt very cold. I felt weak," she said, recalling the attack some 35 years ago.

"I couldn't call out for help to my husband who was lying asleep beside me. Popo Bawa is strong: He really presses down on you. And it took such a long time: One hour! Eventually I lost consciousness..."
Link