Found in notebook:

Tue 5/13 - 10:20 p.m.
Fell asleep on train, 8:45; just awake from absolutely ridiculous dream. First, was driving car over bridge in dense traffic, where a pair of skinny teenage girls had enacted a suicide pact--one laid atop the other while cars ran them over. Mine was the first one to hit them. Then I was in another car, further back, and somehow undid my running-over, but the girls had still been flattened. So me and someone else went and stopped traffic, plucked them up, and walked them