When someone has to turn every conversation into a "I told you so" speech. Never can they just have a casual talk. They make everything seem as though they're still in the high-school debate club.
"I asked you when it'sgonnarain, not how our environment is being ruined by pollution."
When you realize you phone, iPod, laptop, electronic is about to die as you are going to leave and you uselessly believe if it sits on a charger for five minutes it may last a few hours. Even though it makes little difference
Person 1: dude we need to leave what are you doing?
Person 2: Speed charging my phone it might last a little longer
Person 1: it doesn't help... I'm leaving