Xbox One Problem Solved: Xbox Live's Major Nelson Considering Offline Options
http://stickskills.com/2013/06/15/microsoft-looking-into-playing-games-offline-on-xbox-one/Simple solution really. Disable sharing features if 24 hour check-in fails. System could only run games off discs. However, this doesn't answer the possibility of me playing from the cloud while friend plays off my disc.