RE: bow for defense
Yep! If that is the most deadly thing I had within reach, I sure would. Like others have said though, slim chance I'll be caught without a loaded firearm with arms reach while in my house.
Edit: sr77, You don't live in Texas do you? Check out the Castle Doctrine.
If an intruder is in your house, you can assume that he is there to do you or your family harm.