It's a nice sunny day so you decide to go anti-war protesting with your friends.
You will be arrested.
If you obey all the rules, demonstrate peacefully, don't trespass or block building entrances, or obstruct public sidewalks or impede auto traffic, or destroy property and don't run with scissors, you will still be arrested.
You may be arrested for kneeling or shrugging or leafleting or wearing a plain T-shirt or holding a bucket of paste.
It has become illegal in the USSA to unknowingly break unknown, never-before-heard-of laws while protesting war.