If shared dreaming is infact possible there would almost have to have a third party relay the dream and have the two participants in two differant locations. This would in fact prove this to be true.

I am not saying you are a lier Placebo (I hope you would already know this In fact I too have tried to get my wife to meet me at a certain location in a dream in order to have a shared dream. So I obviously don't disscount this as a possibilty.
But for the sake of proof don't you feel that would be the only way to truely prove shared dreaming?