[QUOTE]Somebody should have told this "office electrician" (the old tenant) that the wirenuts should be twisted before applying the tape. The wires were just stuck into them (but the tape held like a biting pitbull). [/QOUTE]

In my opinion you should not have to use tape when applying wire nuts. If you have to use tape when you make taps/joints you might want to reconsider your technique and/or use of materials