Boyyyyyyyyy.. if you have two people in one household who render.. make sure you don't share the same runtime(ours is on server built for the whole house).  Short but ugly story.  Brother got a character/texture.  Saw it when I updated my studio content and used it in a render.  Gave the artist appropriate vendor credit.  He comes and visits my render.... looks at his purchases and doesn't see my artist name.  Sends me a nastygram about it.  I replied back.  He replies that it's against rendo policy to do what we're doing(by letter of the EULA it is...only the law of douche-baggery makes it enforceable in cases like this) and would prefer that we buy separate copies for each person using it.  I say I'll check with admin about it and do so.  They say "that's a no-no.. every buys a copy) and i say "nice.. even in the same house.. possibly even on same computer."  they say "yep" I say.. "nice.. lost yourself a customer there.. even if you sell the recipe to turn lead into gold."  they say "have a nice day"