The chicken dinner incident
My wife was headed north after a doctor appointment. She was very sick with strep throat. She was kind of dozing off.
A youngish guy got on the train and sat in the seat perpendicular to her. So his knees were about 3-4 inches from her thigh. She noticed two things about him: He had a hideous scar on his face that formed a crescent from the corner of his mouth to his ear. And he had a chicken dinner in a clamshell Styrofoam box on his lap.
After awhile, she noticed a fumbling or commotion of some sort out of the corner of her eye. She looked down, and the guy had snaked his hand under the chicken dinner and into her coat pocket, in an attempt to pick her pocket. She gasped, and abruptly got up and moved to the end of the car.