I was reminded of this just today...see, when I am going to groom my own dogs, I might contact a couple very close friends and ask them if they want theirs done as well, since I'm set up for it. But I do not want every friend-of-friend or distant relation or anyone popping up and asking me (or even worse, telling me) that their dog needs grooming, and since that's "my thing" I shouldn't mind doing it, right? Never mind that it's my shampoo, my water, my towels, my time, and wear and tear on my tools, and you're expecting me to work for free? Yes, I used to do this for a living, but to be honest I don't even really enjoy doing my own dogs anymore...I just do because it needs doing and I'm broke. If I could afford it, you better believe I'd be paying someone else.
So, short answer is no. I will not groom your dog. Ever. And DEFINITELY not for free.
I have one friend whose dog I will groom at no charge, but we also have kind of a deal; she is a professional makeup artist and has been teaching the MOST incompetent person in the world about the basics of makeup. (the incompetent? That would be me.) She takes the time and helps me while using her own supplies, so I consider it to be fair trade. Plus, her dog Rollo is one of my favourites. He is cute and friendly and I'm always happy to have him visit. Other people, not so much. Especially not those who assume I like spending my weekends in wet, soapy clothes, smelling like a wet dog and covered in hair for free.