This is very interesting because this question reminded me of the Interest Inventory exam I took one year in college. I remember seeing a few of the following professions that the exam told me might suit me: Actuary
😕, Special Ed teacher
😱, Pharmacist
😳. My mother had been telling before I took this test of how she thought teacher or pharmacist might be a good route for me.... I was rather dismayed to see how well she knew me.
Anyway...
😀
This is a really interesting topic. I'm very much a creature of habit. I always sat in the same chair for class when I was in school. I always park in the same parking spot at work. Things that are repetitive don't really seem boring to me but are more comfortable since they are familiar. Adults throwing fits in front of me doesn't really bother me. I usually just let them finish the ranting and arm flailing then ask them with an amused smile if they are finished and ready to start acting like an adult so that I can help them. I think those two personality traits listed above will be helpful when I am working as a pharmacist. Repetition is just part of the game and grouchy people are just par for the course.
Like Glowwyrm, I also am a creature of habit. I must be since I would sit in the same chair for class (or lunch) as well. Repetition doesn't bother me TOO much. People throwing fits and ranting does bother me but I just let them rant and nod and say, "I see. I know. I'm sorry to hear that. I'll do the best I can to help you." etc. I don't smile.
😛
I think I am ISTJ as well. What's a Type A personality?
I love to help patients understand the WHAT they are taking it, HOW to take it, WHAT to expect & WHEN to contact me or their prescriber.
Like sdn1977 I would probably love to help patients understand the above. I like to instruct (but no, I don't want to be a teacher at this time), and the people I admire most in the office I work at right now is the RN (she knows so much!
😍 ) and one of the PA (he's so good and willing to explain things! but then again, he teaches at universities...
😍 ).
I love to learn. I always have a LOT of questions. I was a tutor in a tutoring program at my university, and the directors knew my name because of my questions. Every training session they would call on me even if I don't have my hand raised and ask, "So, do you have any questions? Or three?" And my coworkers and supervisor like to tease me sometimes: "I'm sure you have a list of questions you are ready to ask...".
I don't like not having anything to do when I am at work. When I first started out in this job, I would constantly ask, "Is there anything I can do?" They wanted to start me slow since I had no experience whatsoever. My supervisor was always telling me, "Don't worry. Take it easy. There will come a time when you've got so much work to do, you can't even think."

He's right.
I consider myself to be rather meticulous, detail-oriented, and orderly. I like organization. I like knowing exactly what I have to do. I have a bit of a perfectionist streak so if I make a mistake or something, it bothers me a lot.
I like to help out. I had wanted to be a doctor when I was younger to help care for my parents and my neighbors when they were older. I like being useful. In past forums I've registered for, I would jump to answer questions if I knew the answer.
Several months ago I was wondering whether I should be an accountant or pharmacist. I chose to study pharmacy because I wanted to help people and to instruct, and I didn't think I'd be doing much of either as an accountant.
That said, if my plans to go into pharmacy don't work out, I'll probably go into teaching. I think I might like teaching high school math, elementary school, theology, or do research on religious education.
...
So far in pharmacy school and my experiences in shadowing and working in retail hospital, I've noticed all types of people - introverts, extroverts, etc. But I think that most of us all share something in common - the need for order. One of my professors said recently "you can't be a pharmacist if you aren't a little OCD." I think that this rings true.
Edit: I just took a test at
http://www.humanmetrics.com/cgi-win/JTypes2.asp, and I came up as an ISTJ.
heh. I didn't see this post until after I posted. Anyway, I don't consider myself OCD, although I find I don't feel I can work without a bit of organization in my life. When my desk got too messy, I took nearly half the day to tidy things up. There is no official training program in place here (or organized training in general) so I started typing up the notes I have for future coworkers and myself.
Also, I just took that test above and came up with ISFJ.
Edit: Reading the description for ISFJ, I think it fits me quite well. Too well in fact. -_-;