I wonder if it would be possible to erase most of Voldemort, but keep the Quirrel mask personality through some combination of Memory Charms, Obliviation and Legilimency. He was a pretty cool teacher, after all, when not murdering the students and whatnot. Using the Stone, it would be even possible to give him a permanently-transfugured Quirrel body, so that the students don’t get scared of Voldie teaching them...
I wonder if it would be possible to erase most of Voldemort, but keep the Quirrel mask personality through some combination of Memory Charms, Obliviation and Legilimency. He was a pretty cool teacher, after all, when not murdering the students and whatnot. Using the Stone, it would be even possible to give him a permanently-transfugured Quirrel body, so that the students don’t get scared of Voldie teaching them...
R.I.P Quirrelmort, we shall miss you...