Something I just realised
In Prisoner of Azkaban, Lupin never transforms until he goes outside in the full moon.
So if that was the case, what's keeping him from just sealing himself in a dark basement with absolutely no windows every time the full moon occurs and not transforming?
Yes, plot convenience he happens to transform just as they go outside, but still
In Prisoner of Azkaban, Lupin never transforms until he goes outside in the full moon.
So if that was the case, what's keeping him from just sealing himself in a dark basement with absolutely no windows every time the full moon occurs and not transforming?
Yes, plot convenience he happens to transform just as they go outside, but still