Metagaming: Can a Player Unknow Something?

Can a player unknow something? How should they communicate this outside knowledge? Does an ability check solve the problem of a player having knowledge outside their character? Tonight we discuss metagaming - what does it mean, how does it occur, and how much DM's can expect their players to not act on or share information their characters do not possess. Obliteration Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/by/3.0/