I’m about halfway through the first Ghost in the Shell: Standalone comples series and finally became curious enough to look up where “I thought what I’d do was, I’d pretend I was one of those deaf-mutes” came from. Well, it’s a reference to J.D. Salinger’s Catcher in the Rye. It’s a buildingsroman type novel about a kid growing up in New York. Here’s the paragraph that it’s exerpted from:
Anyway, I kept walking and walking up to Fifth Avenue, without any tie on or anything. Then all of a sudden, something very spooky started happening. Every time I came to the end of a block and stepped off the goddam curb, I had this feeling that I’d never get to the other side of the street. I thought I’d just go down, down, down and nobody’d ever see me again. Boy, did it scare me. You can’t imagine. I started sweating like a bastard–my whole shirt and underwear and everything. Then I started doing something else. Every time I’d get to the end of a block I’d make believe I was talking to my brother Allie. I’d say to him, “Allie, don’t let me disappear. Allie, don’t let me disappear. Allie, don’t let me disappear. Please, Allie.” And then I’d reach the other side of the street without disappearing. I’d thank him. Then it would start all over again as soon as I got to the next corner. But I kept going and all. I was sort of afraid to stop, I think–I don’t remember, to tell you the truth. I know I didn’t stop till I was way up in the Sixties, past the zoo and all. Then I sat down on this bench. I could hardly get my breath, and I was still sweating like a bastard. I sat there, I guess, for about an hour. Finally, what I decided I’d do, I decided I’d go away. I decided I’d never go home again and I’d never go away to another school again. I decided I’d just go see old Phoebe and sort of say good-by to her and all, and give her back her Christmas dough, and then I’d start hitchhiking my way out West. What I’d do, I figured, I’d go down to the Holland Tunnel and bum a ride, and then I’d bum another one, and another one, and another one, and in a few days, I’d be somewhere out West where it was very pretty and sunny and where nobody’d know me and I’d get a job. I figured I could get a job at a filling station somewhere, putting gas and oil in people’s cars. I didn’t care what kind of job it was, though. Just so people didn’t know me and I didn’t know anybody. I thought what I’d do was, I’d pretend I was one of those deaf-mutes. That way I wouldn’t have to have any goddamn stupid useless conversations with anybody. If anybody wanted to tell me something, they’d have to write it on a piece of paper and shove it over to me. They’d get bored as hell doing that after a while, and I’d be through with having conversations for the rest of my life. Everybody’d think I was just a poor deaf-mute bastard and they’d leave me alone. They’d let me put gas and oil in their stupid cars, and they’d pay me a salary and all for it, and I’d build me a little cabin somewhere with the dough I made and live there for the rest of my life. I’d build it right near the woods, but not right in them, because I’d want it to be sunny as hell all the time. I’d cook all my own food, and later on, if I wanted to get married or something, I’d meet this beautiful girl that was also a deaf-mute and we’d get married. She’d come and live in my cabin with me, and if she wanted to say anything to me, she’d have to write it on a goddam piece of paper, like everybody else. If we had any children, we’d hide them somewhere. We could buy them a lot of books and teach them how to read and write by ourselves.
(the boldness added is my own)
Seen in the context of the book, I have no idea what in the world this is supposed to mean in the series. I suppose I shall find out 
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