Drop out? And let her win this little battle she has started with you? YEGADS!! I think not!!!

I think I would calmly and firmly educate her on the disadvantages of using spanking and yelling as forms of discipline. Kindly (hehe) provide her with literature about the proper methods of training dogs, and maybe give her the names of a few books on the matter. Let her know that you think she needs a lot of instruction if she is to become a decent pet owner, which is much more important than making a dog do a perfect figure 8.