Almost everyone thinks they are a good person, but the question you should be asking is, am I good enough to go to Heaven? How would you know?
When we first started playing we did a lot of rehearsing. We used to write out everything. In fact, that's the way everybody rehearses: we play the tunes and improvise.
Observe which side resorts to the most vociferous name-calling and you are likely to have identified the side with the weaker argument and they know it.

