I purposely leave one un-chambered hoping that when I loudly load one into the chamber the stupid bastard who broke into my house will have a change of thought. The cocking of a shotgun is fluent in all languages under the sun.'
While that may be true, the only time a perp should hear the shotgun rack is if you've already fired a shot. I keep my shotgun loaded condition 1 (chambered, safety on) with a full mag tube. But then again, if you feel more comfortable keeping it without one in the chamber, do it. Just please don't be like some dumbasses and leave your mag tube empty. When you have to load a shotgun under stress (especially in fight or flight) it's nearly impossible.