I found I can "hijack" hot water for a bit from my neighbor. My room shares a wall with my neighbor's bathroom, so I can hear when water is running in his bathroom. By total coincidence, once when I was washing my hands I suddenly was miraculously getting warm and then hot water! My stars, I was shocked! I didn't know what to make of it or what to do, but when I exited my bathroom I could hear my neighbor's shower running through the wall on the opposite side of the room and started putting it together. Several times thereafter if I heard his shower running, I would go check whether I could get hot water and it worked every time. I began formulating what I could do to exploit this situation.
The hot water doesn't last long enough for a full shower and he takes showers several hours earlier than I do, but just touching, feeling, caressing, . . . light petting the hot water was doing wonders for my psyche. I've therefore decided to bifurcate my showers and rearranged my routine so that during the window of time I expect him to be taking showers, I don't have ear buds jammed in my ears and when I hear his shower running, I go and wash my hair and face with glorious hot water! Only my head gets wet and it takes just a few minutes.
Several hours later when I usually take my showers, I finish off the job under cold water which I can do very quickly. I'm probably under cold water for less than 2 or 3 minutes; head stays dry. I still have the "AUUUGGGHHH!!!!" mentality of jumping into a cold river at first, but I've also started working on transforming any negative, virulent energy into something like loving-kindness. It sucks, it's cold, it's miserable, but instead of reacting negatively emotionally I try focusing on a positive attitude.
At first I tried focusing the energy as loving-kindness to all humanity as teachings encourage, but I'm not the Dalai Lama and have you seen the news lately? Loving-kindness to all humanity in a sincere manner is honestly just not in my capacity of courage. So then I tried something easier like my cousin Audrey who has been all but useless lately and has made it clear we have no relationship . . . yup, aiming it at her still works. And then my mother who occasionally sends photos with my brother's family in mass emails that I never respond to, but despite being the only person making any kind of contact is the last person I want anything to do with . . . yes, she actually qualifies! Sounds like strange psychology going on but I'm not sure this is psychology as much as dharma, or even karma. It occurred to me and it worked/happened without resistance or disgust. Strange things happen when stripped down to desperation or personally challenging extremes.
I don't know how my neighbor is affected nor if he's getting seriously pissed off nightly when his hot water drops off in the shower. I know nothing about plumbing, but from my experience living here two showers competing for hot water at the same time means everyone's quality and expectations are compromised. Yes, I feel like an asshole knowing my actions are possibly causing him anger, but . . . dude, it's hot water.
What I don't know is how he'll react as this situation continues. I'd be surprised if he just tolerates it – he's paying rent which implicitly includes hot water and if he's losing hot water during showers, that's a problem. I don't know how he'd be able to figure out I'm the culprit. He might complain to the landlord but I don't know how they'd be able to pinpoint me as the source of his problem. Just testing his water without me running mine and there's no problem. But then they might guess that someone else must be running water at the same time every night and end up knocking on my door and directly asking me, which is a horrifying thought. I don't know how that conversation would go unless my neighbor speaks English, although it might be an opportunity for me to tell someone I have no hot water at all. If they fix that, I stop interfering with his showers and he's happy and I go back to taking hot showers after midnight and I'm happy.
But that's just wishful thinking. I just have a feeling my hot water-siphoning won't be maintained for the rest of winter and he'll do something to stymie it. And I'll still have no hot water. Why do I think that way? Am I being unreasonably negative? Go ask the universe.