I have a question. My first 3 tats I got at a studio and so of course I paid the shop for the tat and I tipped the artist. But what I am wondering is I got a new tat artist whom I am actually going to see tonight to get another tat.. however, he works out of his house. So of course what I pay him for the tat is all his. Do I still tip him? Or just pay what he is charging?