It's about sensory fuzzing. Either masking them or overexposing them. An armchair in the closet under the stairs in the dark with a loud ceiling exhaust should be a reasonable substitute and save a lot of water.
It's like "flip a coin to decide a problem - while it's in the air you'll know how you want it to land".
My college coworker just called it the "coprocessor" and said the only way to engage the coprocessor was copious amounts of mario kart.
I lived in a large new england textile mill building while I was in college, with well over a mile of hallways over its five floors. I could have walked to other states, doing laps at 1AM while figuring out computer science homeworks in the back of my head.
