Yes, for the rest of your life. Nothing is more permanent than wallpaper.
Good demonstration of the limitation of the golden rule, "Do unto others as you would have them do unto you". I've heard better variations (sometimes called the Platinum Rule) like "Don't treat others the way you wouldn't want to be treated", or "Treat others the way they want to be treated"
“Ask your neighbour’s permission before redoing their entire decoration” is also a good rule.
This is a community for all things Moomin.
The Moomins is a franchise created by finnish author/illustrator Tove Jansson. It features a vast amount of comics, TV series, movies, books and games, telling various stories mostly set in moominvalley.
If you are new to the Moomins, this video essay is a fantastic starting point to learn about this family-owned franchise.
More European works:
