You are what you feel Each of us plays many different roles in a day. You're a Top in one relationship, a Middle in another, a Bottom in yet another. You can identify the particular role you are playing at the moment by noticing how you feel deep inside. That's the world of a Top. That's a Bottom world.
Ends feel 'unsupported' by their Middles.
Each group suffers a different type of internal breakdown. A typical group of Tops will be plagued by issues of Turf. They handle the complexity and responsibility that surrounds them by dividing it up. I used to bristle if he 'poked his nose into' my area. Before I understood how Top groups function, I took his interest personally.