File This Under Shady Things That Happen Prior To Massive Cheating....
A player didn't accept the AFK check. Your group was returned to matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. A player didn't accept the AFK check. Your group was returned to matchmaking. You are now in a chat room with your full champion select team.
We've all had those moments while queuing for a match.
We forget we are even waiting and do something else to distract ourselves, and end up missing the AFK check.
One occasion, I even accidentally failed so many AFK checks so many times that the client told me that I was declining too many AFK checks, and if I declined any more there would be some sort of consequences. (forgot what the msg actually threatened me with it was so long ago)
So, yes, this does happen from just people being people...
.....but here is where the logical reasoning skillz come in, when this consistently happens over and over again, and is not a super rare occurrence as has been happening as of late.....GIRL PLEASE!