I haven't been to Ocean City, Maryland in a few years.. But it used to be (might still be) that a lot of people would rent mopeds there. The main highway is always a zoo, except for the bus lane. Mopeds used to be allowed (might still be) to share the bus lane with the buses, and since the bus lane was the right-most lane, everyone pulling onto the highway and pulling off the highway went across the bus lane to get onto the main highway. This always seemed to me to be a total recipe for disaster for the mopeds.
I can remember once riding on a bus, and watching some dude (not only no helmet, but no shirt or shoes either!) get cut off while going what looked like to be maximum speed. He ended up hitting a curb ramp and flying through the air- over a 2 or 3 foot tall shrub/bush, and into a crowded parking lot. The bus was moving too fast for me to see the results of this stunt, but I'd say it's safe to assume that the driver of the moped got thoroughly thrashed!
Around where I live, there are several teens who have mopeds/scooters and ride them on sidewalks and bike paths with reckless abandon.. What scares me the most is the number of young grade school age kids who's parents let them ride those tiny weed-wacker engine powered scooters (not much bigger then a razor scooter!) They go flying down crowded residential neighborhood streets, no safety equipment, no apparent obedience of stop signs or right of ways, etc.
Crazy stuff man..