But I earned all A's in high school

How many times have I seen this?

“Increasingly, undergraduates are not prepared adequately in any academic area but often arrive with strong convictions about their abilities. So college professors routinely encounter students who have never written anything more than short answers on exams, who do not read much at all, who lack foundational skills in math and science, yet are completely convinced of their abilities and resist any criticism of their work, to the point of tears and tantrums: ‘But I earned nothing but A’s in high school,’ and ‘Your demands are unreasonable.’ Such a combination makes some students nearly unteachable.”

"To some degree, the higher education bubble is a creature of the lower education bubble," Glenn Reynolds comments.