I've always loved that vibe, that connection between Jack and Emet. I can imagine growing up he probably didn't have many friends (Shear is a remote, hostile frontier planet, not great for kids. Or maybe they found Jack too smart or weird or something), so he had to make do with what he could. And instead of imaginary friends, he built his own.
This picture totally captures that! I wish I could give more than 1 like!