That time I was on the subway headed east, I was sitting by a door and at one station when the doors opened a white dog on a leash came in ahead of the person at the other end of the leash. The dog looked at my lap and jumped up on me as though it wished to get away from the person holding the leash, a young negress, who when she saw the dog on my lap said with a shocked tone "oh I'm so sorry he's never done that before, get off his lap oh I'm so sorry." She and the dog moved away a few seats.
How this could be used as an incident in a fiction. A person on one of the ttc subway lines gets a surprise when the train stops at one of the stations and a negress with a white dog on a leash enters. The dog takes one look at his lap and jumps up on his clean pants. The negress gasps and yanks the dogs leash while at the same time telling it to get off his lap and apologizing to him, saying that's so strange he's never jumped up on anyone's lap before.
A couple of weeks later he is sitting by the door in a cafe on yonge street between bloor and Asquith. The door opens and a negress comes in and sits on the floor across from where he is sitting. She is unkempt as though she's been sleeping in an alley and starts talking under her breath about needing a home and could he take her home with him, she would behave herself and not bother him, if she followed him home would he take her in. she goes on talking while sprawled on the floor near the door while the guy who had the dog jump on his lap and other customers watch her until one of the staff comes and asks her to leave. That is when he wonders if that is the same negress who's dog jumped on his lap in the subway and if that incident was planned with this second event.