So while I ran home from my parents I had my younger sister watch my son and I literally just walk through the…

So while I ran home from my parents I had my younger sister watch my son and I literally just walk through the door...and my little sister was in the living and I watch my son fall down CONCRETE stairs! All because she had her face into the damn phone and have no idea why the stairs door was open!!! I am so freaking pissed off!!!! And she even told me she did nothing wrong! 😡😡😡😡😡