identify the movie from this snippet of dialogue...

There’s a scene that is thrashing about on the periphery of my consciousness that I’d like to identify; it may be from something other than a movie.

There is a shop, or a stall or something; a customer picks up a sausage and asks “is this sausage fresh?”; the vendor shrugs (A Gallic or Jewish sort of shrug - I think so, anyway) and replies “It’s a sausage” (as if the question of its freshness was not comprehensible).

The customer might be sniffing the sausage and/or handling it more than necessary; I think he throws it back down and picks up other items for examination.

What am I remembering here?

I have no idea where it’s from but it sounds awfully familiar, so here’s a bump.

“Sausages inna bun, two for a dollar and that’s cutting me own throat?”