If your friend just lends it to you well technically speaking that is against the rules, but then so is lending someone a book and I've done that a time or to. If your leaning it to 10 friends then that would be different.
If you happen to say be in the room, while your friend is watching his tutorial We're not going to have you shot for it or anything
David
From a readers' Q and A column in TV GUIDE: "If we get involved in a nuclear war, would the electromagnetic pulses from exploding bombs damage my videotapes?"