Awhile ago, I served as sacristan at a Jesuit high school. With no disrespect to the Society of Jesus, you can imagine that the Masses were full of liturgical abuses. After Mass, I was often asked by the campus minister and/or priest to purify the vessels. Also, after every all-school Mass there was always a considerable amount of Precious Blood remaining; when I began to consume the Precious Blood remaining, I was told by the campus minister and priest to
"just pour it down the sacrarium; that’s what it’s there for."
Now I knew that purifying vessels was reserved to the priest/deacon, and I wasn’t positive—but fairly sure—that the Precious Blood should not be poured down the sacrarium. But, out of confusion and fear, I did what they asked me to do (only once, however, did I pour the Precious Blood down the sacrarium; after that one time, I refused to). I brought these sins to confession, and received absolution. However, I now fear that I have incurred a greatly penalty than I originally thought. I know it wasn’t intentional, but would this situation still be considered "desecration or profanation of the Blessed Sacrament"). And if so, how would I resolve this?
Link (here) to read Fr. John T. Zulsdoph's full post, his answer and further analysis at What Does The Prayer Really Say ?