I have every right to yell Fire in a crowded theater or any where else I deem fit..
Especially if there is a FIRE..
I then not only have a right but a responsibility..
( I would probably wait until I was near the exit, however.. )
As for the 2nd, ...
I will pry the guns from the cold, dead hands of the Jack Booted thugs that come to get MY guns..
And use them get even more..
Yes you do have that right. However, there are consequences in law should you exercise your rights irresponsibly and cause harm to the person or property of another.