Doctor John Silber spotting at Petit Robert Bistro in Kenmore Square

A reliable source tells me Dr. John Silber had lunch with an unidentified person at Petit Robert Bistro yesterday. Dr. Silber, a frequent guest at PRB, ordered the swordfish and praised the restaurant. There was an akward moment, however, when he asked the waitress when the new PRB in South End opens and the waiter didn’t know.

Yesterday’s potato-leek soup was excellent, according to the source.