A wrench smashed into the side of his head. His ear was hanging off, and most likely his skull was fractured, and yet there he is, standing and yelling at Ripley to let him have the Alien, and nobody tries to take him to the supposed medical facility on the ship where they wanted to remove the embryo from Ripley. With the force that the wrench slammed into his head he should have been down and out. And as for the guys with guns, yea they should have reacted. Aaron didnt walk up and smash Bishop, he shouted "f**kING ANDROID!" as he ran up and smashed the wrench into his head. They just stood, watched, and then reacted after the damage was done. Nobody gave a shit that Bishop had his skull whacked, but afterwards, we see Morse with a bandaged leg. So they could fix the guy they shot, but not a supposedly important man from the company. Something about it screams expendable, like a droid.