These rules are simple, they are for the chatbox.
1. Cursing at another member is NOT tolerated, we have younglings here. It will be counted as an infraction.
2. No speaking of or mentioning pornographic material or anything to do with sex. Any mention will be counted as an infraction. We have younglings on this site.
3. No spamming. Spamming is repeatedly saying things that have nothing contribute to the conversation. Spamming is treated as an infraction.
4. Don't disrespect ANY members, whether they are students OR staff. Can result in an infraction.
5. No excessive use of caps. Can result in an infraction.
6. Do not post links that may be harmful or inappropriate for ANY age group of users, or that may be harmful to the site. Wil result in an infraction.
The system for punishment of these rules is as follows:
First infraction: Verbal warning.
Second infraction: User is kicked.
Third infraction: User is banned from the chatbox for 24 hours.
Also, depending on the severity of the infraction, the user can be given more sever punishments. If a user continues to harass or anything of the such in forums or over DN, ban him as you see fit from the entire site.
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Subject: Chatbox Rules and Regulations 
When a Spell, Trap, Spell/Trap effect, or Effect Monster's effect is activated that destroys a card(s) on the field: You can Tribute this card; negate the activation and destroy it. During the End Phase, if this card negated an effect this way during this turn: You can Special Summon this card from your Graveyard.