What I didn’t mention in that previous entry was that Motoko’s window was boarded up (hence the dark reflection you see) because of construction being performed on the exterior of the brick building, just above our floor. In order to keep brick dust from flying all over the outside courtyard, workers used water drills. Unfortunately, this had the added effect of making water seep through the brick and into the window sill, transforming (magically!) from water to dark red brick-sludge on the way.
Despite this scientifically-proven explanation, I don’t wish to stop anyone from following their hearts and coming to visit the mysterious bleeding window. After all, your belief that the window is simply the otherworldly means of communication from little Amy Prescott who tragically died in that spot years ago (thanks to reader laffingpc for that) is a personal decision that will guide your soul and bla bla bla. Admission to see the window is $5 and you get a 10% off coupon for the Bleeding Window gift shop with each ticket purchased.