I know what you are going through. My wife also has stage 4 lung cancer. She just spent a night in ICU and tree more days in the hospital. She has decided to give up treatment because she would rater have quality of life instead of quality, A hard decision but I back her because I love her...
It is not a good idea to post signs to beware of the dog theme. If they would bite someone and they take it to court it can be said that you knew you had a vicious animal and being fenced in may not make a difference,
I had trouble with our dog until I got a training collar, It has 3 settings a light shock which is uncomfortable to most people, a buzzing noise and wholly molly which is quite strong. I never had to use anything but the buzzing noise and he wore it anytime he was outside and the chickens were...
I have a coopers hawk that comes through every once and awhile. It has never bothered the chickens and they don't seem to mind him being around. I know others have not been as lucky. He does take a bird or two every year off of the feeder and they are beautiful birds.