It'e really just a restatement of the ancient English principle that an Englishman's home is his castle, and the home being his castle, it certainly requires an armory.
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Anyways, I was actually looking for a song by an early 1980's Southern California punk band, but I found this one (by an Australian!!!) which certainly does the same job, albeit in a more relaxed, family-friendly manner.
Enjoy!
