Thescaryfact ™ on Instagram: "In 1989, Japanese teacher Yumi Tanaka discovered a black shoe floating in the toilet of her school — and what began as a strange find quickly turned into a mystery. Investigating further, authorities found the body of a man wedged inside the sewer tank just outside the restroom. Even more baffling was his position — he had somehow managed to squeeze through an opening just 14 inches wide. The case baffled investigators due to the confined space and the lack of an ob