It does! Any friend of Rissa's is a friend of Mack's. I'm sure he tried the whole escape room thing but was too unobservant to make it out in the allotted time. He also scares easy, so if it the room was at all horror themed it likely gave him nightmares for the next week. If Si ever makes a promotional video for the business, he's kind of the ideal client to showcase. You could pop out covered in a bedsheet and it would be enough to make him jump.