When you're the captain of Team Builder (assume you're Mid Lee Sin)

And you accepted a douchebag ADC(just for the fun of it), and he goes:

: Dafuq? Lee Mid? U a stupid fking troll, im out! Left Team

And you're like http://38.media.tumblr.com/457f1fa1cd6fa37032d02dbecbfad13d/tumblr_inline_mq2j5tZg6R1qz4rgp.gif