http://www.newrepublic.com/article/115726/period-our-simplest-punctuation-mark-has-become-sign-anger
Adding a period at the end of a text message makes one look pissed off.
http://www.newrepublic.com/article/115726/period-our-simplest-punctuation-mark-has-become-sign-anger
Adding a period at the end of a text message makes one look pissed off.