Shared Dreaming - Would This Work?

So, I know shared dreaming is a touchy subject, and that there are those who believe in it, and those who don't. Personally, I do. For those of you who do not know, shared dreaming is just that, a dream which is shared between multiple people.

What I want to know/try is if you have a shared dream, and only one of you know you are dreaming, couldn't you tell the other person they are dreaming, and vice versa? This could, in theory, double the amount of lucid dreams you had (provided they were all shared dreams).

An example would be if I were to have a shared dream with somebody else and I was lucid, but they were not. Couldn't I tell the other person that they are dreaming, and essentially "give" them a lucid dream?

It is a bit far fetched, I know, but it has practical reasoning behind it nonetheless.

P.S. I figured this would be better off here then the beyond dreaming section since it is more about the research of shared dreams, and not having them.

Only if they believe you.