@Riot - you need a better announcement system, PLEASE!
The amount of games I've had to play tonight with a jungler going, "WTF can't build jungle item".
I don't even blame them -- a tiny icon that we are supposed to check before queueing up is hardly an announcement when game changing items are disabled.
Not even a devourer OP or not thread (personally I hate it), just a comment on how Riot handles announcing things that have a huge impact on a game and can ruin many hours of game play for their players.
http://www.reactionface.info/sites/default/files/imagecache/Node_Page/images/feels-bad-man.jpg