Dear pnewton,
Hello again.
Mickey is quite correct, dear friend, the Church expects the faithful to have a well-formed conscience so that they will not make catastophic errors of prudential judgment as regards matters in which she has not declared her mind. To always demand official magisterial pronouncments upon every single issue is just not the way Catholics approach things. This is more akin to a Protestant Evangelicalism, which is always demanding biblical warrant in support of every claim made.
Certainly Holy Mother Church declares universally valid absolutes that do not admit exception, such as its unequivocal condemnation of homosexual acts of depravity and pornography. However, it has not, for example, pronounced upon the use of profanity, yet very few pious Catholics would be found defending the use of four-letter words, which would be considered not to comport with Christian standards of language. Thus, dear friend, the moral sense of the faithful has always considered bad language to be vulgar, impolite and unbefitting those who profess the holy religion of Christ. Notwithstanding that the Church has not specifically addressed the issue of bad language, its use has always been regarded as wrong and unacceptable. Similarly, we do not require a Catechism citation to specifically denounce the neo-pagan celebration of Halloween and its occultic associations. A well-formed conscience should tell us that its macarbe character is unwholesome, having connections with the occultic subcultures and therefore ought be avoided by those who profess to be the sons of light.
God bless.
Warmest good wishes,
Portrait
Pax