I don't really care whether you, or anyone else carries a gun at home. I do. Do I really need to justify that here?
No you do not have to justify it. These discussions are not intended as personal attacks though sometimes we (well at least I) mistakenly take them as such. We are discussing the value of having a gun on your person at all waking hours. I'll give you that it has a defensive value.
However when at home inside your house on my chart of how much defensive value it gives you its pretty low... There is a cut-off line that we all draw somewhere (assuming you do not have Secret Service type protection) because it is a necessity of life to occasionally do things that make you less secure than you would be if you did not do them (showering and sleeping come to mind).
My chart (when inside my house) goes something like this:
Situational awareness - are you aware of what is going on around you?
A plan (I still say this is slightly different than situational awareness) -
Plan B
Plan C
Closed doors
Locked doors
Secured or hard to access windows
Reinforced doors
A readily available weapon
Competency with the above
A readily available firearm (preferably a long gun)
Competency with the above
.
.
.
.
A gun secured in immediate access on your person
For various reasons I draw the line above the "gun secured in immediate access on your person" While we may all disagree with some of the things on this list there are a lot of things more important then a gun on your person (I am not intending to argue you are not aware of this).
I am willing to bet that many more people have a firearm then have reinforced doors. Hence my comment about the mysterious nature to me about it.