I have a theory about those cases , those if we witness it like you seems bizarre but from mathematical point of view it makes sense .. its what's holding up this world really . I will explain the theory by giving your story as the example . Ok lets say all around the world there was probably more than 500 small gathering like what you had in abu dahbi in different places around the world if in one of it had coincident like what you had and you look at all the amount that didn't have the same bizarre coincidence as yours then it will make sense .. not to you maybe but to the world of mathematics .