Avodah Zarah 60: Falling into the Vat

An idolater who crushes grapes via a press, but it's still potentially libation. But that's indirect.... and indeed, the wine is prohibited, but there's more room to maneuver than initially believed... Others are more comfortable for one to sell the wine - since it's not prohibited for benefit. Plus, the case of a non-Jew standing next to a vat of wine. And what happens if he indeed falls in?