uphill right hand blind turn, where cars insist on riding the shoulder, because it's the Monaco GP and all.
i'm only on it for about 30 seconds, but that's where i've had the most close calls. once got clipped by a "trailer mirror" on a pickup truck. nice bruise on my shoulder.
and people wonder why my messenger bag is neon yellow with orange trim and reflective tape, and why i have the most annoying blinking tail light possible.