Last week I'm driving home, taking the canyon route because of a sig alert at the 101 and 405, and this is normaly a busy canyon route so it's basicly 12 solid miles of cars single file caravaning at a steady 35 mph. I had the usual 4-5 car lengths distance between me and the car infront. So some shmuck (I assume young, inexperienced greenhorn with a death wish) on a motorcycle was a bit impatient comming the opposite direction and in his desire of wanting to make a left turn. This had to of been some kid who's played more hours riding a motorcycle in video games than real life I figure, because he yanks the bar so hard and then gasses it without leaning into it. The stead of cource reacts obediently to it's idiotic master, almost throwing him off. Over powering and turning from starting in the middle of a narrow two lane highway, he had at least powered off a bit, but is now heading with good momentum and at a straight cource for the shoulder and ditch, so he has to lean EXTREMELY heavy to his right to now correct. All this happening obviously in a split second and 30-feet infront of me heading at 35-40 mph while I'm kinda half brain dead because I've already been in the conga-line procession for 7 miles. It was pure reflex on my end and habit of paying attention to the road (and I noticed his Fup as quickly as he did) that prevented my right headlamp helmet planting him. !@#$n' idiots this time of year. I take that route often, it's a motorcycle I haven't seen before and it was taking a left into one of the small communities that lives in the canyon, so it reeks of a new young kid in the area or a visiting guest, I'm keeping my eyes out for them since as I'm sure I'll happen by them again soon, and share my opinion that the next time he has an idea to kill himself, to please have the decency to keep me and others out of it.