“My mom’s rages are highly out of control,” says 17-year-old Summer about her mother, Susan. “It’s just terrifying.” She claims that Susan yells, curses, calls family members “a variety of horrible names,” and has physically attacked Summer’s father, Peter.

Susan admits that she’s frustrated with her husband and daughters but adamantly denies that she is “always screaming and raging,” as her family claims. “I’m frustrated. I can’t take it anymore,” says Susan, adding, “That’s why I’m ready to leave.”

In this clip from Dr. Phil season 10, Susan tells Peter, “I’m telling you right now, tell the truth, or I walk.”  Watch the video above to see what happens next.