You asked what's it good for? 

As a DM I've often struggled with players who may prefer to meta-game rather than react to a situation in character. For some groups a very tactical, min-max play style may be fine--but for other groups the DM may want to encourage playing in character.

This mechanic gives the DM a nice discretionary tool to reward play that may be out of the tactical norm but might be a TON of fun for the group. 

For more information see page 35 of the D&amp;D Basic Rules.

What is inspiration?
Considering the recent litigation in which Google apparently claimed that all the emails, all the data in them, are Google's property and can do with the data whatever they want, I get frequent questions from our employees how does this translate into Gmail for business which we're using. Is the data in our corporate account also Google's property?

http://www.theregister.co.uk/2013/08/14/google_cloud_users_have_no_legitimate_expectation_of_privacy/
