I was playing Ashe and I had just teleported back to based when a team fight broke out waaaaay up at the top of mid lane. I knew there was no way I could get there in time to really help, but I figure, what the hell, I'll ult and shoot an ice arrow up there and maybe it'll somehow hit and stun someone long enough for one of my allies to do some damage. Can't hurt, right? So I shoot it off randomly into that general area and start jogging up lane. About four or five seconds later I hear "You have slain an enemy!"
Never even saw what happened.