At the start of season 13, Pratt achieved his new title as attending, while Chaz moves in with him after Charlie abuses him and he joins Greg in cutting all ties to his rotten dad. However, later on, Pratt discovers his brother in a compromising position with another man. After much denial and a talk with Dr. Kerry Weaver Pratt begins to understand and accept his brother's homosexuality. He also supports his brother's new job as an Emergency Medical Technician but clashes with Chaz's co-workers after they encourage him to drink near-fatal amounts of alcohol.