I never have had any aspirations of running a day spa.
Nor am I likely to ever get paid for my services, though they are much in demand these days.
My single, (very) satisfied, (frequent) repeat customer is continually teaching me what I need to learn in order to master the art of avian massage.
Whether I happen to particularly feel like it on any given day or not. 😉
Many masseuses who are new to the profession wonder how to know when the customer is done being massaged. A nip (or the delicate sound of avian beak-grinding – a sure prelude to napping) is a reliable indicator.