Chaos has just about removed pain caused by the machine by the time the baby starts trying to press the button. He glances at the baby, then does a double take, seeing what it's about to do. He quickly sticks his hand in front of the ray, unsure of what would happen if it hit something that doesn't have DNA.
As the ray hits his hand, Chaos flinches a bit, but not as much as last time. He then carefully grabs the baby and puts him at the end of the lab counter he's working at. Better to have the baby farther away from the machine if that kind of thing is going to happen.
The ray makes a sound similar to this.