YANKEES radio announcer John Sterling is being called out for foul behavior in the stadium's press dining room. "Sterling has made a habit of walking over to the dessert table and dipping his finger into the ice cream barrel," one stadium worker told us, adding that the play-by-play vet has also used the same tablespoon to repeatedly take samples. During the Boston series, "He wandered over to the cake and pie section, broke off a piece of a cake slice, ate it and wiped his grimy hands on the linen tablecloth, leaving the remainder of the slice for someone else to eat - which indeed happened," our spy continued. A rep for WCBS Radio declined to comment, and a team spokesman said the Yankees "know nothing about it."Gross, but does it really need to be a separate story? Who interviews dining room help anyways?