When someone tells you you're against a diamond top laner
Me regardless of who gets first blood https://media.giphy.com/media/e2wFIvRQ71MaI/giphy.gif
What most people will do after enemy first blood http://68.media.tumblr.com/7fbea88a20524d170f89bd3901f1546d/tumblr_nomiewxxEo1txfojso1_400.gif
Never back down from a challenge you can learn something new if you play against them to also just because someone is diamond doesn't mean they are good at top lane either.
But if the guy is Challenger or Master then. http://i.makeagif.com/media/2-21-2016/cWJBiq.gif