What most protestant brethren fail to understand is the nature of the Mass, it is a prayer service, yes - it is also much more, it is the Sacrifice at Calvary made Real all over again.
Our Lord becomes Present, Body and Blood, in the highest form of Worship. In most protestant forms, the highest form of worship is prayer, in the Holy Mass the Ultimate Sacrifice is made real again and again and those of us in a State of Grace partake of His Flesh and Blood as He commanded.
Ya'll don't seem to be on the same page.
And this RC poster was pretty aggressive in their posts.
Some ambiguity might arise with the phrase "made real again and again." You might want to ask this FReeper whether he means "We are brought into the one, real, eternal sacrifice of Christ again and again" *OR* that Christ is "slain multiple times," again and again. I would bet my right arm up to my elbow, this FReeper, choosing between the two, would say "yes" to the former and "no" to the latter.
The Mass is described by the Church as a "bloodless" sacrifice, by which we do not mean that no Blood is present (what is present after the Consecration is His Blood) but precisely that this sacrifice does not involve killing Him again.
That's why I advise you, when there is an ambiguity or an apparent contradiction, to ask the person what he means. It prevents many an awkward error.