On MSNBC, Chris Jansing just bragged that she needed P. Diddy to teach her how to use a hammer when she was working yesterday on the Habitat for Humanity houses that are being built near the Today Show studio. Habitat for Humanity is a noble organization, but the air of self-congratulation that wafts across the NBC airwaves when it comes to these sample houses being constructed for ratings reasons alone is enough to make you gag.