Final answer:
The question has mixed up the story of Tam Lin from Scottish folklore with the character El Patron from Nancy Farmer's book 'The House of the Scorpion'. There is no event where Tam Lin atones by drinking poisoned wine; this appears to be a confusion between separate narratives.
Step-by-step explanation:
The query seems to be rooted in confusion as Tam Lin is actually a character from Scottish mythology and has no direct connection to El Patron or the act of atoning by drinking poisoned wine. Tam Lin's story is unrelated to a narrative involving drinking poison as atonement or punishment. In your excerpt concerning El Patron, it appears to be related to the fictional universe created by Nancy Farmer in her book 'The House of the Scorpion', a story different from the Tam Lin legend. El Patron is a character in Farmer's book, and the concept of him poisoning someone is from that work. There is no direct relation to the Tam Lin folklore where the character Tam Lin is required to atone via the consumption of poisoned wine. It seems there is a mix of two unrelated stories here. On a separate note, the texts referenced are rich with imagery associated with wine, its symbolism, and metaphorical use, reflecting various themes like deception, indulgence, and retribution.