I think once it broaches personal issues and once it sort of supersedes your moral boundaries of what language is tolerable, and also when it sort of gets a bit mundane and boring to the point of just going on all the time.
In myths things always turn into their opposites as one version supersedes the next.samuel r. delany
No outward doors of a man's house can in general be broken open to execute any civil process; though in criminal cases the public safety supersedes the private.william blackstone
Each stage in life is an edition that supersedes the previous one and will also be superseded until the definitive edition: the one that the editor gives to the worms.
Cada estação da vida é uma edição, que corrige a anterior, e que será corrigida também, até a edição definitiva, que o editor da de graça aos vermes.
Necessity creates the law, it supersedes rules; and whatever is reasonable and just in such cases is likewise legal.stowell, william scott, 1st baron