I would think piercings like that would be a problem in a scientific environment.
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I'm willing to submit some blood samples. I don't know what kind of tissue you would need or how dangerous extracting some would be.
Voluntary blindness may be effective, or it may not. It isn't simply my eyes that are affected. When it all combines, I find myself using sight, hearing, smell, taste, and even a few senses I didn't know I had.
Brain replacement is out of the question. I would consider an implant if putting one in wouldn't lay me up for too long.