A. To impress Johnny Hitswell at the pool, Riley replaces the older pool life guard with a hunk (voiced by Zac Efron). B. Riley accidentally lets Todd's pet rat loose and replaces it with a new one. Goof: Principal Cutler says the rat was several years younger than the rat the school gave him. But rats only live to be 2 or 3 years old. Note: * Riley's "crush", Davey Hunkerhoff, is likely a parody of David Hasselhoff