Plenty of great TV shows and movies involve people making tiny bad decisions and then spending the rest of their lives making more and more of them to try to make up for the first one, eventually becoming irredeemable monsters. It’s unlikely any of us will, say, decide to start cooking crystal meth like Walter White in Breaking Bad and one day find ourselves running a New Mexican drug empire. But if guilt is how we police ourselves, we need to allow ourselves to feel that guilt, and we need to listen to our guilty consciences when they give us pause.