system
A chat on subreddit /r/NoStupidQuestions
human
Put your money in a tankless water heater and live the good life for cheaper than keeping your old water tank heated all the time.
gpt
My boss kept complaining about their teenager always using up the hot water, I suggested one of those gas water heaters.

They joked the issue was that if the hot water never runs out the their teenager would probably never get out of the shower.