If it was an egg or roten fruit sure - something easily identifiable as harmless - but when you spritz something from a syringe - that does cross a line to me - you could see and hear the panic in the room of people understanding omar was not directly harmed but could be poisoned - that fear, the fear which interrupted and shortened her speech is what is criminal, just shy of terrorism, in my view
If its not illegal, then we're going to go down a slippery slope of "im not touching you" style games, a line has tk be drawn and i place it here, somewhere between throwing a milkshale at someone as being a basic assult and spritzing someone with an unidentifiable fluid as being more than just assault