Here's the question: What could take you away from your house for a few days, and in which you fully expect to return home?
How about raw sewage backing into your basement? What if the local river jumps its banks and the water is in your house? There are also the chemical spills mentioned above.
What, not Rambo enough?
Many "survival" situations are pretty mundane. It's the preparation that makes the situation bearable. Anything that necessitates getting out of your house for a few days, to me, is a "bugout". The difference is what you take with you. To me, it's almost never a INCH scenario.
This is the law:
There is no possible victory in defense,
The sword is more important than the shield,
And skill is more important than either,
The final weapon is the brain.
All else is supplemental.
- John Steinbeck