How to Become a Legalist:

1. Make rules outside the Bible.
2. Push yourself to try and keep your rules.
3. Castigate yourself when you don't keep your rules.
4. Become proud when you do keep your rules.
5. Appoint yourself as judge over other people.
6. Get angry with people who break your rules or have different rules.
7. "Beat" the losers.

From the recent sermon Jesus the Sabbath Lord. Here's the full sermon: Click through to the Resurgence if you can't see the video.