Good one on you Goombah. Moe Green telling Mike about how he makes sure players get drinks at the tables.
Fixed a shattered face in return for fixing face shatterers.
Hint....he was doing his Don a sevice in exchange for a previous favor.
I can't think of what this would be from the film. But if this thread includes the novel, I would say it has to be Jules fixing Michael's face in exchange for Michael's influence in getting Jules un-blacklisted for performing abortions.