But Don was also one of the few people who could tease Frank and get away with it. The pair often dined at Patsy’s Italian Restaurant in Manhattan, where chef owner Sal Scognamillo recalled their pranks on each other. Once, Don was trying to impress some gals, so he gestured to Frank to come over to the table. As the singer sauntered over, Don turned to him and said: “Not now, Frank, can’t you see I’m eating?”