You mean like Aquinas' opinion that the reason masturbation was mortally sinful was because the male semen contained all that was required to conceive a child? That the woman was a mere receptacle for the "life" that the male deposited in her? (Aquinas offered his opinion, ignorant of the fact that the female produced an egg)
17. Among the Scholastic Doctors, the chief and master of all towers Thomas Aquinas, who, as Cajetan observes, because "he most venerated the ancient doctors of the Church, in a certain way seems to have inherited the intellect of all."(34) The doctrines of those illustrious men, like the scattered members of a body, Thomas collected together and cemented, distributed in wonderful order, and so increased with important additions that he is rightly and deservedly esteemed the special bulwark and glory of the Catholic faith. (Leo XIII, Aeterni Patris)
The old "switch the topic to something totally irrelevant" technique.
Clumsy, Sink.