On the Full House episode "A Pox In Our House," Stephanie spreads the chicken pox to Joey and Jesse. About 14 or 15 minutes into the episodes, Stephanie is sneaking out through the kitchen. But she can't get out because Joey is there, complaining that his food isn't ready. So he goes to write down what he wants, but he doesn't have a pen. So Stephanie throws him one and runs out of the room. Joey picks it up and something that sounds like the phone rings. He says "I guess I'm sicker than I thought." Then the camera pans into the living room, where Danny is talking on the phone. But wait- didn't the phone just ring when Joey was in the kitchen? People don't usually have two different phone lines on the same floor.