Luckiest League Moment?

tried to ult as karthus to kill my enemy mid laner. i mis calculated and he survived but i killed both top and jungler. i couldn't see either of them and had no way of knowing their health. also bottom got a double kill a few sec later and i didn't evem know they were fighting. 2 kills 2 assists and i wasn't trying for any of them just trying and failing to kill the mid. :)