Drunk drivers are deplorable. Yes, we know. As Captain Casciato, SFPD's chairman of DUI crackdowns, put it in his media release for this weekend's sobriety checkpoints: "even drunk drivers hate drunk drivers." So unless you want to be completely ostracized (or worse), kindly arrange for sober alternative transport to and from your holiday weekend festivities. Once you've got your DD situation taken care of, let him or her know they can expect a bit of traffic around the sobriety checkpoint at Lombard and Divisadero where SFPD will be in place all weekend long — from Friday evening until early Monday morning — stopping anyone heading out of the city after their Crissy Field barbecues or Marina rooftop ragers. [SFAppeal]