Normal Day (Part 1)

It had started out as a normal day for me. After taking the train into work, I headed up the elevator. An odd-looking man got in just as the doors were closing. He hit me with some sort of drug, and I passed out. I awoke on a floor of the building I thought was vacant. Instead, it was apparently where this man conducted some strange experiments. And I awoke inside the body of an old man. I was horrified, and I begged for my own body back. He explained that was simply impossible. After a while, we arrived at a compromise. I’d allow him to experiment on me again. I wouldn’t get my own body back, but I would give him a list of specifications about the new body I would want, and he’d follow them.