In the beginning, way before the T-1000 was developed, there was the T-100, a more primitive model. He was a lot smaller, and less advanced. Which explains why he spent all his time looking for food in the water.
But when the world is in danger, he picks up his trusty Winchester 1887 and fights for humanity’s survival.
He knows no fear. Or any other emotions for that matter. That’s why he needs to wear his shades at all times, so people can’t see him cry.
He often looks like he’s on a very important and deadly mission, but he’s actually looking for more food in the water. Some call it an obsession.
He’s always there in the shadows, waiting for the next time humans need him again. Basically, he just sits there when he’s not off looking for more food.
That’s probably why Arnold had to step up as the next cyborg. This one wasn’t very good.
Elaine on Baby talk
San on Baby talk