Your walls and ceiling-do you,can you buy emulsion paint or do you use distemper. My freshly
distempered wall got splattered with bacon fat today-what to do?

I always thought distemper was a canine disease, lol.

In China, emulsion paint is mixed with water and glue. They call it distemper. Back in such countries as Blighty and Aussieland we have what is called 'washable' paint. Chinese emulsion is not washable! However, the glue in distemper is supposed to make the wall easier to clean.
I therefore suggest you try some neat washing-up liquid on a clean, damp cloth. If that fails then you'll have to re-paint the wall.

However, if you must re-paint the wall, firstly rub the grease marks with sandpaper to remove the grease. If you don't, then the grease will 'bleed' through the new paint. 'Nippon' paint is OK, but make sure you buy the one in the pink-coloured can. It's kind-of mid-range and should cost you about RMB180 for 5 litres. The cheaper can, (I think it's green), is too watery and doesn't cover well. Buy the pink one and dance around the room for ten minutes to give it a good shake before you open it.

Jeez...Paul Fox's advice column or what? lol