King of the Hill - Season 7 Episode 20 -

Hank fails to install the new valve on the water heater correctly, and it causes a leak, leaving Peggy to wake up with Bill hovering over her on the front lawn. Not wanting any further complications,Peggy hires Mack, an African American repairman. Ladybird attacks Mack, and he accuses her of being a racist dog and quits. When a dog trainer tells him that Ladybird subconsciously follows Hank's lead, everyone accuses Hank of being racist, too.