Watch your back

Groceries in Korea are cheap. Restaurants are even cheaper. Everyone delivers. And everyone orders in. This demand for fast, direct service has created a master race of delivery scooters.
Laws do not apply to these two-wheeled speed demons. If a traffic light is red, they'll (maybe) yield and fly right through. If traffic is crazy, and it usually is during dinner hours, they pull up onto the sidewalk at mach speed. Mothers and fathers with strollers are no match for these psychos; it's a game of chicken and they always win. They're quite stealthy too. You won't notice them creeping up on you until they speed by, leaving you with nothing but a face full of exhaust and a heart attack.
They come in all different styles and models. This one, for instance, is a moped style bike with the classic milk crates for cargo space. The more successful establishments sport modern 'crotch rocket' style vehicles, with sealable cartons on the back to keep that live squid hot during transport.