Sub or customer?

In my opinion there are subs and customers

A sub wants to serve and a customer is just that, someone who wants to pay for  something and that is it

There have been times someone has wanted a session with me but they have been worried that I would only do one if they were serving me, they are not into financial domination, they don't want to serve in any capacity they just want a session. I will consider sessions whether they be one off or something more frequent and anything inbetween, I won't just do one with anyone who asks as I have to enjoy and want to do the session

I am not saying those that just want sessions are not submissive, but in my opinion there is a difference between someone who has submissive traits and someone who is fully submissive

Like most things it comes down to communication and honesty, if you really just want a session and not to serve in any way you need to be honest, you don't need to pretend or lie hoping it will get you what you want, and even if you don't consider yourself a sub but as a customer you should still use manners, address a Domme correctly and so on, as I said above I won't just do a session with anyone who asks

Can someone be both? I am not sure they can but it does not mean they can't be , this after all is just my opinion on the matter

I would like to add I don't see anything wrong with someone that considers themselves just a cutomer