Tenets of the Dark Brotherhood, fake rules only

[Jaevwyn]

Never drink the last Ale without purchasing more for the sanctuary,
To do so is to invoke the Wrath of Sithis.

[SmallbutDeadly]

Never leave any nearby Nirnroot unplucked.
To do so is to invoke the Wrath of Sithis.

[Pup]

Never invoke the Wrath of Sithis,
To do so is to invoke the Wrath of Sithis.

[KingOfFriedChicken]

If on an elevator with captain america you can do whatever he says as long as he whispers hail Sithis

[NMGSGaming]

Never turn up at the door with a guard after a night of drinking.
To do so is to invoke the Wrath of Sithis

[ice]

a real follower of sithis wouldn't join some cult and stop there, killing everyone is the only answer, including the death cult posers led by namira

[Just Chill]

Never summon a scamp in the dark all hallows place.
To do so, it's screeching and bantering will invoke the Wrath of Sithis.

[Nrogara]

Do not enter the Sanctuary with muddy boots.
To do so is to invoke the Wrath of Sithis.

[Jaevwyn]

Never enter the Sanctuary in a state of undress,
To do so is to invoke the Wrath of Sithis.

[EASY PETE]

Don’t breath
To do so is to invoke the wrath of easy pete

[Cascomp2]

One must never claim that the Jedi are cooler than the Sith.
To do so is to invoke the Wrath of Sithis.

[Pestilence]

Never bogart the skooma.
To do so is to invoke the Wrath of Sithis

[Just Chill]

Do not put a flower hat onto the Dark Guardian. Do not hug it, nor show any form of affection towards it.
To do so is to invoke the Wrath of Sithis.

[EricHVela]

Do not kick puppies.
To do so is to invoke the Wrath of Sithis (and a whole lot of other people, too).

[MarisMarch]

Do not brew potions faster than once per second.
To do so is to invoke the Wrath of Sithis.

(And trigger a CTD.)

[Vyvyvn]

Don't toss around clown points so freely.
To do so is to invoke the Wrath of Sithis.