Rule 21
No weapons are allowed in the helicarrier without Director Fury's permission. And, yes, that does include Stark Industries weapons
Rule 22
Tony, please stop trying to create a drug that will return Steve to his former athletic state
Rule 23
Please don't draw on Loki's face when he is napping. You may wake up the next day to find yourself turned into a cockroach
Rule 24
No Thor, we are not adopting a baby panda and training him up to be 'the dragon warrior'
Rule 25
Games of truth or dare are banned. You people are just too inventive
Rule 26
The number 69 is not to be mentioned in rude context. You all know why
Rule 27
Stark Tower is not haunted by the ghosts of Christmas past, present and future. Who would even be stupid enough to believe that?
Rule 28
After Eights can be eaten at any time
Rule 29
Always think before you speak, some people in this initiative are very sensitive (i.e. Steve)
Rule 30
When Bruce has a theory about how Sherlock faked his death, do NOT argue with him. You will always loose. Always