It is impious behavior to steal the offerings of the Gods. Here is one instance in which one person stole the wine of Aset and Nebet Het as They were mourning Wesir and pouring libations out to His Ka. He drank it during the Mysteries of Wesir celebration on 21 of Khoiak.
He drank wine from the vessel that was to be poured out to the Nisut and Wesir Wennefer. This is seen as a taboo to the Goddess Aset because he basically stole from the offerings during the libations to Aset and Nebet Het as they are mourning during the Mysteries of Wesir.
it basically states in the footnotes that the person is drunk.
What we can take away from this is:
1) Don’t get drunk during ritual. It is beyond rude to the Gods, yourself and the other participants.
2) Don’t take offerings of the Gods. Don’t steal from Them. And definitely don’t drink what is meant to be poured out onto the ground (a libation of wine in this case).
Bezalel Porten, ed. The Elephantine Papyri in English: Three Millennia of Cross-Cultural Continuity and Change. (Brill Academic Publishers, 1996), 341.