This sounds implausible, but one of the three guys I'm living with is completely incapable of even the most simple domestic tasks, and often totally ignorant of their purpose.
To begin with, he washed up by squirting each item with washing up liquid, rubbing it with his hand, then running it under the tap. We've now got him actually using a sink full of soapy water, and managed to cut down his washing-up liquid consumption from a bottle a week at the start of term to much less, by a combination of explaining that you do not in fact need actual bubbles in order for things to be cleaned, and watering down the contents of the bottle. But he still doesn't actually get stuff clean, and he doesn't seem to take subtle hints such as saying 'this is still covered in dried on manky stuff' and putting things back in the bowl. He also hasn't grasped the concept of sitting things that have been washed upside down so that the water runs out, so if someone doesn't keep an eye on him then all our plates and dishes end up with limescale rings all over them.
He was genuinely confused when asked on one occasion to wash the cheese grater, and when asked what he thought would happen if it was left covered in cheese, looked totally blank. I found it hard indeed not to laugh when my flatmate then explained to him as if speaking to a small child that cheese goes mouldy when left for long periods of time.
He wipes the kitchen floor with a tea-towel clutched in his bare foot, then puts the towel back by the sink.
When asked to scrub the wok on which he had managed to create a layer of charred beef several millimeters thick, he looked confused and asked why we thought he'd be any better at it than the rest of us.
After one of the other guys switched the boiler off, he asked me why there was no hot water. I showed him the electric switch, and the boiler, and how to switch it on, and his reaction to this was an odd mixture of surprise, confusion, fear and indifference. Turns out he'd been assuming the boiler was a dishwasher.
Anyway, he doesn't seem to live in the real world, or have any semblance of common sense whatsoever. What I'd like to know is if anyone has any ideas for tactfully but nonetheless forcefully imposing on him some kind of connection to actual physical reality, particularly those parts of it relating to cooking and food hygeine.
Well, tbh I just wanted to have a rant as well...