When I was in high school I took advanced placement courses in math and English.We had the option of taking a test so we could skip first year freshman English in college since we were taking advanced English in high school.
I decided not to take the test because I thought I would get a better start in college if I actually took freshman English and got my feet wet before getting into the more difficult courses.
During orientation we still had to take a competency test in English. We had to write a short paper. I assumed it was just a formality. As it turned out, it wasn't. I'm not sure what I did wrong, but because of that test I was placed in remedial English (English 100). Ever since then I have had a fear of competency tests.