Because someone reading this must have taken psych at some point:

Yesterday I stumbled upon something called "Imature Personalty Dis-order". After a bit of background reading from Google, I realized that it might apply to more people in my life than I care to admit. Then I found myself wondering: at what age, or at what stage in one's life, is one's personality supposed to become "mature"?

[this post has been edited to insert intentional misspellings]