"Ma'am, could you help a man who's not had work?" I kept my eyes down. I couldn't look a human in the eye and ask for help. "Just a dime for a cup of coffee." I knew where I could get it for three cents, maybe two and a half. I felt her looking at me. She spoke in an educated voice, one she used, perhaps, as a teacher or supervising telephone operator. "Do you want it for coffee, or to apply, or a glass or hypo of something else?" I cringed and whined. She would expect it of me. I suddenly realized that anybody as clean as she was had to be a tourist here. I hate tourists. "Just coffee, ma'am." She was younger than I was, so I didn't have to call her that. "A little more for food, if you could spare it." I hadn't eaten in a day and a half, but I didn't care much. "I'll buy you a dinner," she said carefully, "provided I can go with you and see for myself that you actually eat it." I felt my face flushing red. "You wouldn't want to be seen with a bum like me, ma'am." "I'll be seen with you if you really want to eat." It was certainly unfair and probably immoral. But I had no choice whatever. "Okay," I said, tasting bitterness over the craving. * * * * * The coffee was in a thick white cup before me on the counter. It was pale, grayish brown and steaming faintly. I picked it up in both hands to feel its warmth. Out of the corner of my eye, I could see the woman sitting on the stool beside me. She had no right to intrude. This moment should be mine, but there she sat, marring it for me, a contemptible _tourist_. I gulped down the thick, dark liquid brutally. It was all I could do. The cramp flowed out of my diaphragm. I took another swallow and was able to think straight again. A third swallow and I felt--good. Not abnormally stimulated, but strong, alert, poised on the brink of exhilaration. That was what coffee did for me. I was a caffeine addict. Earth-norm humans sometimes have the addiction to a slight extent, but I knew that as a Centurian I had it infinitely worse. Caffeine affected my metabolism like a pure alkaloid. The immediate effects weren't the same, but the _need_ ran as deep. I finished the cup. I didn't order another because I wasn't a pure sensualist. I just needed release. Sometimes, when I didn't have the price of a cup, I would look around in alleys and find cola bottles with a few drops left in them. They have a little caffeine in them--not enough, never enough, but better than nothing. "Now what do you want to eat?" the woman asked. I didn't look at her. She didn't know. She thought I was a human--an _Earth_ human. I was a _man_, of course, not an _alien_ like a Martian. Earthmen ran the whole Solar Federation, but I was just as good as an Earthman. With my suntan and short mane, I could pass, couldn't I? That proved it, didn't it?