Wouldn't have to resort to eating a person in those scenarios.
Aways have my trusty Leatherman Redneck Tool on me. With it, I could walk up to a farmer's cow, slice it's throat and enjoy several nice meals. In town, if there are than many people lying around, soemthing tragic must have happened and not many people would be around. I can use my leatherman to pick a lock to a grocery store, take some food (leave money at the cash register of course) and eat to my heart's content.
About the only scenario that would trouble me would be in a lifeboat in the ocean. But after reflection, I would put a little slice in one of my left fingers, hold it over the boat and chum for sharks. When one came in, I would slice of some fin and start shewing (The chinese say it is a delicacy).
(Just think of what McGiver could have done if they had leathermans while his TV show was running)
I believe Hank said it best, "A country boy can survive"
