So you spent nearly an hour of that conversation absolutely silent only to pop up and remind everyone you're there right at the end? That's worthy of some recognition.
Oh man, you really ripped that guy a new one. The sting of your wit is matched only by the breadth of your intellect. Achievement unlocked, treat yourself.
That's it, you've officially told every person you know some little fact that they won't ever even possibly find a use for in their life. Achievement unlocked! Best wear this one so everyone knows exactly what to expect when they talk to you.
Looking for some way to let that one person know they need to, just... stop coming? Why not gamify the experience for them with this hand achievement! Perfect for letting down the achievement hunter in your life who you need to let go easy.