Auntieflo just read your op, would love to help, but giggling too much!
Mr P is generally a decent chap, but does (of course) have his little peccadilloes, which include sometimes leaving empty packets in the fridge, eating a cold sausage that I was looking forward to, and adding insult to injury by leaving the plate in the fridge Grrrrr! I won't even go into the onion bhagee incident, it happened in 2001 but I'm still traumatised 
But one of his other episodes involved the only time he did the washing. I explained which programme to use, and also about separating the laundry into 2 lots, one light colours and one dark.
He duly did this, making 2 neat piles, which he then put into the washing machine together