Bob writes:

This might sound strange but has anyone know where I can buy a really
obnoxiously loud door bell?

Here's what I have in my back hallway, so I don't miss hearing it:

http://www.harborfreight.com/cpi/cta...emnumber=94906

I rigged up three 6-volt lantern batteries to power it through a doorbell
switch, saving $$/year on running a transformer 24/7.