An aside - pluspinc, there may be at least one exception to the accepted views on rifles for home defense. Please see
http://www.olyarms.com/223cqb.html
Apparently the .223 in 55 gr. hollowpoint may have some practical use in urban tactics / home defense.
When I first heard this quote, it was in a more humorous version,'... shooting your way back to your rifle, which you so stupidly left behind ...'