What limitations do we have to freedom of speech?

1st off unless you have children in THAT school ?! You'd probably be arrested for tressping,and MOST kids are taught strangers are a danger, and you would there for be a threat to them..Maybe you should be worried about ALL your right's that the constitution gave us, that our government has put in jeaperdy, by ping the Patriot Act , under this law you ONLY have whatever right's they choose to give you, yes including freedom of speech! Rather then trying to get children to act up at school, teachers have a hard enough time getting them to do their work and mind while in school..! Your so called psychology skills, MUST be in that YOUR the biggest Idiot , I ever ran across...Umm by the way school staff have a name for people like you STALKERS .! PERVERTS ,! Are you on drugs , Dude, get help you need it!!