A man gets his fingers caught in a slamming metal door for a long period of time, we hear a loud snap and he screams very loudly. Blood streams down the door and blood is all over his clothes. He is later seen picking up two of his fingers.
One of the robbers is an inherently violent man and commits violent acts unexpectedly, and seems to have no moral conscience.
One of the intruders gets badly burned. His arm is shown on fire as he tries to extinguish the flame. His face is badly burned. These injuries, of course, remain in view until he leaves the story, and he is shown to be in unbelievable pain.
A man is shot in the head with such force he spins around before hitting the ground. Blood spurts. The bullet leaves a gaping hole over his eye with a thick blood gush.
There is an extended sequence in which a character is brutally beaten and kicked until he is a bloody mess with a broken arm. He is at one point knocked out, and shown in great pain again when he tries to use his arm and is knocked out of his chair.
In self-defense, a man is shot through the head, the bullet comes out his eye with a lot of blood spray.
There are numerous threats of violence (apart from those actually carried out) against a man, woman, and child as well as against the invaders.