Protecting People from Themselves
 
Liberty should be maximised.  But sometimes people should be protected from themselves.  Because I'm not an island in terms of character and stupidity.  Sado-masochism should be illegal if it leads to hospitalisation, broken bones or death or psychological trauma or if it is based on coercion.  Make a distinction between forcibly protecting people from themselves - simply attempting to do so through persuasion - not acting at all.