Season 8: Episode 179: Particles in Motion
Theo prepares for his first parents' night at the community center, and worries about how to handle parents whose kids are having problems. During a parent-teacher conference, he develops a mutual attraction with single mother Lisa. She asks him out for coffee, but he declines. He explains that it would not be in the child's best interest for the two of them to get involved. Lisa agrees that their relationship should remain professional. When Theo describes the situation to Clair, she shocks him by announcing that her clients hit on her all the time. Rudy meets Stanley at the open house and is instantly smitten. Stanley gets her phone number from Theo and asks her out. A jealous Kenny shows up at the house before Stanley in the hopes of sabotaging their date.