I am totally familiar with the "evil chicken face." Since I felt terribly guilty about not realizing what was wrong with Eleanor I MAY have read some bad intent into her glaring, unblinking stares.
Eleanor first saw the vet the first week of January; I discovered her frostbite the day after Christmas, but I had to wait to get her to the only competent avian vet in the area. On Jan. 5, she roosted on my arm for the first time (yes, I keep fairly detailed notes; spent decades working at newspapers). By that time, big chunks of skin were coming off when we did the soaks. Her damaged toes were totally stiff and completely black. On Jan. 13 she had her first "healthy"-looking cecal poop -- you know, the runny, putrid-smelling stuff. I was kind of thrilled, honestly.
Her last vet visit was Jan. 23; although she was far from healed, she no longer needed a vet. I've read of chickens who "autoamputate" their toes. But her toes were vet-amputated, and all I had to do was keep up the soaks and wraps at home until we reached the six-week mark. Her feet were getting more healthy, pink skin every day.
Have to admit, I had to overcome a lot of queasy reluctance during her recovery. At first, pulling off the nasty dead skin kind of made me nauseated. It soon became no big deal.
I also use scrap wood for a roost. Eleanor's is a chunk of a cedar picket, about 5 1/2 inches wide, that I have clamped to the wire cage.
I do think she appreciates soft places. I can guarantee she NEVER wanted to sit on my lap when she was an outdoor chicken.
Dottie, the house chicken, has lived indoors for going on three years. She takes "field trips" outdoors in nice weather but has serious issues with other chickens. With no chicken friends indoors, Dottie has bonded with my blind cat and one of my two rescue dogs. Before the newest dog made it chaotic, Dots would lie on the sofa with me and the other two critters.
I have never used chicken diapers, but I do buy a LOT of paper towels. I am quite certain it is impossible to "housebreak" a chicken

.
Eager to hear how the surgery goes!