The ghost bike I pass every day was where a guy got his tires caught in some trolley tracks on the road and tried to pull them out as a city bus came around the corner and he went under its rear wheels. I came home just after they'd taken his body away but hadn't done any clean up. Just knew from the size of the pool of blood someone had died. Now I'm very paranoid around trolley tracks. Almost wiped out in some last weekend.