The Harry Potter Personality Quiz

Which Harry Potter character has the same personality type as you?

This test is based on the principles of the Myers-Briggs Personality Typing system. I made up the questions myself but they're similar to (and influenced by) the questions you'd find on any other Myers-Briggs-based test. The result of this quiz will tell you not only you personality type but also which major character in Harry Potter has the same personality type, according to my own evaluation of the characters. If you don't like your result, you can find somewhat more official tests by searching the web for "Myers-Briggs." I don't claim to be an authority on this subject. The quiz is just for fun!
Now, on to the questions (be sure to answer all of them):