BROOKLYN - Mayor Michael Bloomberg's suggestion that a "beer summit" might smooth over differences between a city councilman and the NYPD are being dismissed out of hand by the councilman. City Councilman Jumaane Williams says he and Public Advocate Bill de Blasio's director of community affairs, Kirsten John Foy, were handcuffed and detained by police for no reason during the West Indian Day Parade. Williams say that although he has no problem discussing the issue with the mayor, he says a casual beer isn't the right way to go about it. "It trivializes what exactly the message is we're trying to send," he says. Williams says he would reconsider having a beer with the mayor on one condition. "After we have an apology and a public admission that something was wrong and there is some discipline and reprimand, sure," he says. BK councilman calls for meeting with mayor after arrest