Richard, you are being very selective in your definition. According to the Oxford English Dictionary, professional means:

• adjective: 1 relating to or belonging to a profession. 2 engaged in an activity as a paid occupation rather than as an amateur. 3 worthy of or appropriate to a professional person; competent.

• noun: 1 a professional person. 2 a person having impressive competence in a particular activity.

The being paid for it is only one part of it. Skill and competence is the other side of the coin ... and you don't HAVE to be paid to be competent and acting professionally. And, in fact, usually when you talk of someone acting professionally, you actually mean they are acting with integrity.

Sue