So if you had cancer and it was suggested that to cure it you should poke yourself in the eye... you would prefer for people (who don't know how to cure cancer)

So if you had cancer and it was suggested that to cure it you should poke yourself in the eye... you would prefer for people (who don't know how to cure cancer) to just walk on by rather than letting you know that poking yourself in the eye isn't going to help? Sometimes the best (only) suggestion a person can give is to suggest that what you are doing is not going to work.