It’s a water heater. Not a hot water heater – hot water doesn’t need heating.
Fixing lunch – gee, I didn’t know it was broken.
Getting a hair cut – wouldn’t it be better to get them all cut?
I talked to a plumber about installing one of those instant hot water heaters. He said he doesn’t work on them because it’s a tankless job.
How do you make holy water? You get a large pot, fill it with water and then boil the hell out of it.
What do you get if you pour hot water down a rabbit hole? Hot cross bunnies.
and always remember that if wishes were horses, we’d need a lot more brooms and shovels.