Umm has anyone ever heard, know or done this?

    her she was the this it anyone but had mom didnt
    
Umm has anyone ever heard, know or done this?
My friend told me that the other day her mom woke her up, but she didnt fully wake up. She then sleepwalked downstairs pulled down her pants, sat on her kitchen chair and peed cuz she thought it was her toliet. her mom caught her and asked her what she was doing but she had peed everywhere!!!!! she said she didnt even remember doing it? has this ever happened to anyone or does anyone know what this is? tell me your stories.