I was struggling to get through Chemistry in college, when I discovered that the online quizzes that made up 25% of our overall grade used time (seconds, not mi

I was struggling to get through Chemistry in college, when I discovered that the online quizzes that made up 25% of our overall grade used time (seconds, not microseconds) as the random seed for deciding which question was shown. This was important because we were allowed two tries to get an answer right. I filled up the computer lab with friends from the class and we all hit "next" at the same time causing us to all be shown the same "randomly chosen" question. We each chose a different answer and then shared the correct answer for the second attempt.