There's always a group of four or more men outside the store on the corner of Farren and Fulton. Cars actually stop in traffic to buy drugs. These guys harass pedestrians, ride motorbikes on the sidewalk, and generally dominate the intersection. They dealers are almost always flying gang colors. They slowed down for the winter, but they're back out slinging now that the weather has warmed up.
I'll post pictures ASAP.