Comment: To each their own.

(See in situ)

In reply to comment: I am not familiar (see in situ)

To each their own.

Knowing what I have learned here, I think that my relationship with the server establishes a contract.

She made and offer to serve, "How may I serve you." I tell giver her my orders. She fulfills them.

I can provide a gratuity on top of paying for the service that I accepted.

Other might see it differently.

Free includes debt-free!