"The stylist brushed against my shoulder as she leans in to trim my bangs. I could smell the perfume – Le Chien was the brand. She asked questions like she truly cared. Serena is honestly the only human touch I know, and why I stop in every week. Someday I hope to kidnap her and take her as my wife."
Throughout the game progress, when you walk into the building, the salon is being held by robbers trying to steal money out of the cash register as part of a Random Encounter. When they run off you have your chance to take them out and get the money ($2000). You can choose to give it back or keep it. Returning the money won't give you any additional benefit, though, so it's highly recommended to keep it for yourself.
If you give the money back, the lady will tell the player that Bob Mulét is an tyrant.