Bobs neighbor Dave is good friends with Bob and cares for Bob who is old, sick, and dying. Dave takes Bob to the grocery store, to the barber, run errands for Bob, and pays all his bills since Bob is bedridden and has a difficult time getting around. Dave maintains that Bob had promised him his two gold rings worth ten thousand dollars each upon his death. However, when Bob eventually died, his son took his rings as part of Bobs estate. Dave claims the rings were promised to him and asks you as Judge to rule on his claim. How do you rule?

Provide an answer discussing your ruling as a Judge in the case.