I dont know what kinda churches youve been hanging out in, but that hasnt been my experience at all.
You have a good point. Whenever I have been in Christian Churches, the people have mostly been on their best behavior.
It is the Christians on the street, at work, in the press and in day-to-day life that expose their sinful ways. Not all Christians outside of church are like this. There have been a few very notable exceptions. These few exceptions give me a glimpse of the potential power of Christ in people's lives. Unfortunately, most Christians just don't get it. Just read the posts in this thread and you will see what I mean.