I just thought of an idea, I figured it out how to convince my therapist to get her feet tickled. I'll ask her?

to do a test on the soles of her feet to see how ticklish she is. By using a pen to draw a Tao symbol or stroking her feet. And if she said no, I try to beg her very much. What do you think of this idea? If anyone think it's a very poor idea, tell me and give me of a better idea.