“My right to swing my fist ends where your nose begins.” - Abraham Lincoln
Oh, and since the topic for some reason seems to focus on Germany again let us read from my country's constitution, the Grundgesetz (Basic Law):
Basic Law for the Federal Republic of Germany
Article 2
[Personal freedoms]
(1) Every person shall have the right to free development of his personality insofar as he does not violate the rights of others or offend against the constitutional order or the moral law.
(2) Every person shall have the right to life and physical integrity. Freedom of the person shall be inviolable. These rights may be interfered with only pursuant to a law.
And with those I think everything that needs to be said has been said.
edit:
@Artie: Sorry, starting typing this before your post went live. But as I said above: It's going to be my only contribution to this topic