CNA Class Instructors Get Anal

I was going through some of the papers for the CNA class I took last year and found this test where the question was "How far in do you stick a rectal thermometer?" (wording might not be exact). And I replied with "just beyond the bulb," which is about one inch. I got the question wrong because the answer was "one inch." Now I'm kind of feeling bad for the patients because for a lot of people the thermometer itself is pretty uncomfortable, never mind the ruler. And when it's one of those rulers with the metal strip so you can draw a straight line, that might not be the right tool for the job. Worse yet is when it's some ex-carpenter trying to use a tape measure and the metal tab gets stuck while it's whirring out of there. Then you get some geek trying to use one of those laser beam measurement devices, I don't know how well that's going to work in this situation. Of course the absolute wrong tool for the job is GPS, because there is no way in hell you can read the screen through the lube. It just ain't gonna happen.