And although there was no love lost between her and Sybill Trelawney, nor the subject of Divination, she felt righteous fury at seeing Umbridge attempting to kick out the witch. Yes, Hermione was convinced that Divination was nothing but ridiculous blathering that occasionally hit the mark - but when one spewed countless "prophecies’ some were bound to be right. And yes, it was the only subject she had ever dropped. However, she loathed Umbridge much more than she loathed the idea of trying to read the future in her cup of breakfast tea.