I'm sure there are people with all sorts of issues with test-taking. But there are a fair number of shirkers too, who use this as an excuse to bypass the system

I'm sure there are people with all sorts of issues with test-taking. But there are a fair number of shirkers too, who use this as an excuse to bypass the system. I remember once I was teaching a class, and one of the students sprung this on me: he claimed he had some issues with the tests and the time required was too short (in reality, my tests were always designed such that if you knew the material you could ace them in 20 minutes; if you didn't, you could sit there for an hour. And they were open book, open notes, so no memorization required). So the next test came, and I told him: take as long as you want; I'll be here. The test started at 6pm (it was an evening course). Most of the class left in an hour or so. But he stayed. And I stayed with him. I did my reading, etc. Finally, at 1AM, he gave up and said he was done. The next day, he dropped the course.