The Noise In Sarah Palmer's Kitchen
I think the horse is a vision, therefore I can't imagine it is the horse that is causing a physical disturbance.
My money is it's Mr C.
How about Richard Horne?
You know, I did think that. But I wondered why she would have him in her home rummaging around and not making a fuss. Perhaps she can see the good in him. Maybe she likes a young rogue rummaging in her drawers (ooh, matron).
I love the idea but listening to it, it sounds like glass bottles, very suggestive that the delivery boy brought them and was there at the time. But it is Twin Peaks so who knows.
Look at Sarah's face when Hawk asked about kitchen, it is like she is in fear or disturbed by his question. Definitely, there is not something legal happen in the house.