It's important to not lose your purse.
Liz was riding the bus to work, and she got into a video game, she lost track of her possessions on the bus.
Liz has to make sure she gets all of her stuff before she gets off the bus.
Liz shuts down her game before she gets to her bus stop and double checks that she has all of her things.
Liz keeps playing her game, oblivious to her surroundings, as she departs the bus.
Liz keeps all of her stuff together, and she still has her purse at the end of the day.
Liz forgets to grab her purse and someone takes it before the bus gets back to the depot.