Menahot 7: The Shewbread

On the offering that is brought by a person who would make it invalidated, which means that there's no rectification for the grain-offering, by returning the fistful to the original vessel. Also, that vessel only functions to sanctify something when it's not on the ground. [Who's Who: Rav Avimi] Rav Avimi seems to have forgotten his Torah, especially that of Tractate Menahot - and there's discussion of his experience of studying with Rav Hisda. Also, more on the question of the vessel on the ground - where Rav Sheshet says: Go look and see what people do (but how did that work, generations after the Temple?). With recourse to the example of switching/refreshing the Lehem HaPanim (the shewbread). But isn't the Table (the Shulhan) resting on the ground?!