I have to turn the volume off on my phone at night (I got rid of my land line) lest I be tortured with calls like that multiple times a night, every night!!
However I, too, am guilty of occasionally listening to a voicemail. I can be SO strong and erase, erase, erase without listening but then for no reason decide to listen to one of his messages! It's always a bad idea. The codie in me comes out full-blast and I end up returning the call or answering the next time he calls.
Argggghhhh!