I’m gonna borrow this from another site:
Going armed to the terror of the public, commonly called Gatttotp, is thrown around way too much.
There are some things people need to know about this common law (not statutory law):
-There are 4 clauses to this common law that must be met
-Very rarely (if ever) will a charge actually stick if you do get charged with Gatttotp
-Cops use this as a tool to attempt to make you comply, and become a sheep
Now, as previously stated, there are 4 clauses to Gatttotp that ALL must be met in order for you to be successfully charged:
-You MUST be on a public highway, such as a publicly maintained street, road, freeway, etc
-You MUST be carrying an unusual weapon. A gun is considered an unusual weapon
-You MUST be threatening to kill someone. Ie, shouting at the top of your lungs "I'm gonna kill person XYZ, because.... BECAUSE! That's why!" constitutes as threatening to kill someone.
And this is the final clause (and possibly most important) that must be met:
-You MUST have intent to kill someone. It's my humble opinion that sitting on a horse in the middle of a road, calling out a name, while waving a weapon around and threatening to kill said person would show intent to kill someone (from the case where Gatttotp originated)
Once again, all 4 of these conditions must be met in order for you to successfully be CHARGED with Gatttotp. However, that doesn't mean cops won't try and make the charge stick.