I basically agree. Single person clearing is an absolute last resort and I know of no professional that would advocate it. Remember that time is on your side....it's incumbent on the invader to move, sooner or later. Gain cover and wait him out.
In certain cases, as you point out (and I've previously stated), there is no choice but to move to protect your family. I personally think protective canines are the key here. Unfortunately, if the perp was willing to gain entry despite the dogs, I'd assume far worse than the common household burglary.
In two shooter families, dry clearing practice is in order as it increases your chances immensely. Still it should be reserved for dire situations.
Basic rule of thumb if you have to go it alone: The guy moving is the target. The guy behind cover is the shooter. Better to be the shooter than shootee.
[This message has been edited by Rich Lucibella (edited July 10, 1999).]