I wonder if your student with nested switches was just bored with the assignment. Way back in college we had mandatory lab time which was cake for anybody with

I wonder if your student with nested switches was just bored with the assignment. Way back in college we had mandatory lab time which was cake for anybody with a little coding experience and I remember doing stuff like that, overflows, bit arithmetic, convoluted recursion logic and so on to see if anyone would notice. Nobody did... or so I thought.