Have I mentioned how incredibly annoying the Vietnamese moto drivers are? I don't think I have. But I did mention the Thai tuk-tuk drivers a long while back. Same deal. If you're near a tourist attraction, a train or bus station, or the backpacker ghetto, you'll be assaulted about five or six times per block. "Hey!" "Where you going sir?" "WHOOO!!" (to get your attention if you're not looking at them.) "How are you today?" To all of which the answer is "No thank you," often not adequate to dissuade them - they know you need a ride somewhere. Or tomorrow. Or, occasionally, they know where you can get a good "massage." Between harrassing passerby, this is what they usually look like. How you sleep on a scooter I do not know, but they can.