Jaded, distrust of authority, feelings of inferiority (I must be dumb if they keep explaining the same thing over and over that I thought I understood), inadequate study skills for college, inability to meet challenges, increased perfectionism, adolescent depression (with some roots in "if my life is spent going to school and I learn nothing at school, does my life have a purpose?) complete indifference to college... Stuff like that.

Without getting into the kinds of direct actions that might lead from these and the results of those actions.

"Potential" is such an overloaded/pejorative concept, it would be the least of my considerations.

No idea whether it is a 10% risk or 90% risk or what on these, but those are some of the mindset results from being continuously bored and unchallenged.