Cool Berkeley-area dentist Marvin Wilson, DDS, has grown in popularity lately due to his laid-back attitude toward regular brushing and flossing, which he 'couldn't give two shits about,' according to sources. 'I asked him if I should be brushing differently, and he said people should just brush in whatever way makes them happy,' recalls longtime client Amanda Jefferies, 27. 'One time he started to warn me about gingivitis, but then he was like, 'You know what? Forget it. I can tell this is totally bumming you out.'' A receptionist confirmed there is currently a six-month wait to see Dr. Wilson, as his schedule is booked with patients needing extensive gum reconstruction. 