Moaning Myrtle is the ghost in the bathroom in the second floor. She haunts it . She is also known as Myrtle. Due to her being a ghost, she smells like all the other Hogwarts house ghosts. Despite the fact that she is a ghost, she can poop everywhere in the school. Myrtle calls poop Ghost poop. Harry is her friend. Hagrid really loves her because she poops a lot.