Robot Children

This dream was cut short by our alarm, but here's what happened. I was in a classroom with another girl (I don't remember who) and a bunch of other strange people. They kept staring at us while they were writing on their papers about something in green ink. Somehow I figured out they were robots (I think I saw their eyes glow red briefly) and wrote a note to my friend on my paper that said something like "they aren't real children, they're machines". Of course, she had a crush on one who asked her to spend time with him so she ignored my warning and I went on my way. I went through a white hall and a bathroom that was just as white aside from the brass handles and spout on the sink, and I thought the robot children were following me, so I closed all the doors behind me and tried to hide, and someone (another girl I think) gave me a strange golden spikey ball that could apparently be used to keep away one's own kind. I remember asking "why would you want to keep away humans?" And then the alarm woke me up.