Minerva Mcgonagall saw everything. She saw every student's happiness, and every student's sadness. She saw every time that James Potter (Sr) would look longingly after Lily Evans, how he would do anything within his power to prove that he was better than Severus Snape. She also saw the latter trying to stay as far away from the former as possible when the poor girl was around. She would watch Harry Potter and his friends as they got mixed up in adventure after adventure. She watched Albus Potter and Scorpius Malfoy suffering at the hands of bullies, and of their own fathers, in Albus's case.