I need excuses to stay at my dads house instead of my moms because she's toxic and abusive, but my dad is out of town right now so I can't ask him to deal with her. What are some things I can tell her?

This subreddit is a Support Group for people struggling with toxic parents or other toxic family members (everyone with toxic family is welcome despite the sub name). Here we can support each other, share stories, fears, vent and ask questions.