The mother was beyond stupid
She comes in and sees him watching a video of the girl next door finding her dead boyfriend, and Mikey clearly has a hammer sitting infront of him, and she calmly sits down in a chair going "Mikey what have you done?" in the tone as if she found out he broke a window or something.
She then continues to sit there like a dumb ass while he comes at her with a hammer, she lets him smash her hand, and instead of jumping up and knocking him down or taking the hammer away like any normal adult would, she casually walks to the fridge to get ice for her hand... i'm fucking serious.
Then he walks up and claws her in the arm with the hammer, she knocks his a little ass down cause he's a fucking tiny 9 year old, but instead of subduing him she runs away as if shes being attacked by a grown adult man who can over power her. And in the end he charges at her with a glass shard and for some reason this tiny 9 year old boy has the power to drive her through the railing and stabs her in the neck.
I swear this woman was one of the dumbest characters ever in a horror movie, all the adults was fucking dumb in this, there was so many moments where they could easily avoid dying and they essentially let this tiny kid kill them.