In the "Friends" episode where Chandler and Ross get bullied by two guys at the coffee shop (Central Perk),when Monica puts all of her money into the stock markets,and when Pheobe gets attacked by a small dog and she hides out in her car with Joey and Rachel to go and see her biologocal Dad which she hasnt seen in many years, there is a dog that attacks Pheobe her Taxi ( Pheobe drives a taxi that her grandmother gave her before she died) if you look to the right you can see some blondish brown haired man holding up the dog into the window.