What's the most dickish thing you've done in League?

Have you ever been winning a game so hard that you just did something, not because it would benefit your team, but just to be a dick? Write it in the comments bellow!

I'll start: I was playing Veigar and we decided we'd take Baron and end it. We came up on river from blue side and we notice that their bot lane comp, a Thresh and Caitlyn, were already there and trying to ward in preparation. The Caitlyn was full health after respawning from the last team fight, but the Thresh hadn't died and was on half health. I was super fed and weighed my options. I probably could've killed either of them, but I was newer, so I wasn't entirely sure of myself. The Thresh was at half health, but quite tanky, not to mention he wasn't as valuable a kill as the Caitlyn. Cait, on the other hand, was squishy but wouldn't take the percent-missing-health damage Thresh would. Finally, it hit me: Why not? I knew that no matter which one I killed, the other would be left useless as the rest of my team followed up. So I let my mischievous side take over. I ulted the Thresh. He was soooooooooo MAD. He kept yelling at me in /all chat, asking me why I'd ultied him. After that, we grabbed Baron and ended the game. It had to be one of the funniest League games I've played XD