Who's more to blame? The Harley rider or the driver who backs out the car in front of him?
My take is that it's two parts the Harley rider and one part the car driver. He takes off far too quickly and doesn't seem to be in full control of his bike as it runs wide. But if the driver had looked a bit more carefully...
Confession time: I did summat a bit like that on a BMW R1200GS once. No-one saw me though, but it was lesson not to be too carefree the first time on a large and strange bike. Once I'd got the measure of it, it was silly grin time on the GS - especially when humpbacked bridges came into it