Killer Carl

S1, E6: When a letter from Carl's teacher arrives at the Gallagher home, Fiona is thrown into action to prove it's a suitable domicile for rehabilitating a delinquent. Lip has been contributing to the family bank account with proceeds from test-taking for his fellow students. His reputation for excelling at the SAT is getting around, and word spreads to some people he would rather have kept unaware. The Kash and Grab continues to get pilfered by a local hood, and Kash (guest star PEJ VAHDAT) and Ian are both ashamed at their inability to stop it. Meanwhile, Frank's bad business sense continues to yield consequences he's unprepared to embrace.