Alright! It's high time for us to have this thread. Even the ESFJ's are ahead of us!
I guess I'll start... I hope they are accurate enough...
You know you're an ISFJ when...
-you say something humorous to a person, then worries how that statement might have the hurt the other person, causing you to apologize to the bewilderment of the other.
-you work on a project and finish it, but it's not perfect enough!
-you get flustered when a person commands you to "Speak Up"
-even constructive criticism hurts
-you get attached to a person after around two weeks of getting to know each other, and when he/she has to leave, you cry heavily.