1. No shoes on the mat.
Entering the mat room with shoes on is disrespectful and rude. All the dirt and germs that shoes bring is a health concern for others training. Plus, mats are expensive and shoes can damage them.
Church members should know that talking during service is just as rude, as when a jiu-jitsu student walks on the mat with his shoes on. EVERYBODY notices it. Church members should be mindful to take phone call before or after church service...NOT during. Talking during preaching is rude.
2. Wash your gi.
Demonstrating good hygiene by taking a bath and washing your gi shows respect to your training partner and is just common sense and good manners.
Church members should know that clean clothes and washing up before church is ALSO good manners and plain common sense.
3. Clip your fingernails.
Un-kept fingernails can scratch your training partner. This quickly becomes an annoyance if you're one of the newbies who doesn't practice good grooming.
Church members should know clipping your fingernails is important, but NOT so important that you have to do it DURING CHURCH! Find a more appropriate time please.
4. Be on time for class. A constant pattern of being late shows disrespect to your instructor and training partners. Nobody likes the guy that is late because he wants to skip 'warm-ups'.
Church member should know that making the best effort they can to get to church on time go a long way. It shows others that you value their time.
5. Use technique, NOT brute strength.
You're not impressing anyone by muscling through everyone and trying to show off how strong you are. Jiu-Jitsu is based on leverage and technique. Take the time to actually learn this!
Church members should know that bullying people with all your bible knowledge is a turn-off to people. Instead, try the bible techniques of grace, patience, love and compassion.
6. Skip class IF your sick.
If you have the flu or a bad cold, stay home so your fellow classmates don't get sick.
Church members should know if your child is sick with the flu, keep him/her home and out of the nursery. There is no sense in infecting all the other children.