It has been almost 20 years since Princess Diana passed away. In honor of her life, HBO and ITV are releasing a documentary about her called, ?Diana, Our Mother: Her Life and Legacy.? In a recent interview, her son Prince William discussed what it would have been like if she were around to be a grandmother. He stated, ?She?d come in probably at bath time, cause an amazing? scene, bubbles everywhere, bathwater all over the place, and then leave.?