This is a nightmare I had in 1996:
Adam and I were in the same lab class in college. The professor turned out to be a mad scientist who was drugging students.
He had drugged Adam and was trying to drug me. Adam realized what was happening but I remained confused.
Adam followed the professor out into the hallway where I could hear them struggling. I came out into the hall and saw that the professor was bleeding and yelling at Adam about his ‘experiment.’
Adam was walking down the hall. As he moved farther and farther away from us, I took the pencil in my hand and stabbed the professor in the neck.
This is where I woke up.