If you are at a protest today and you are approached by someone who is dressed as a magician but you think they are also an officer of the law or military, and they show you a deck of seemingly normal playing cards and do some elaborate shuffles and ask you to "pick a card any card" please be careful not to select any of the kings, no matter what suit.
Similarly, a warning for anyone who is discretely approached by a religious zealot or traveling bible salesman - when they open their trench coat or briefcase to slyly reveal their wares to you and await your precise choice of contraband to purchase from them ... please know that the King James edition of the Holy Book will not be in there today.