After seeing a commercial for Toddlers In Tiaras, I realise Darth Vader wasn't the worst parent ever.

Darth Vader, you are the father! --Star Wars cast on the set of Maury

Vader: "I am your father." Luke: "I am your father." Vader: "Stop copying me." Luke: "Stop copying me." Vader: "Shut up." Luke: "Shut up."

STAR WARS SPOILER! Darth Vader is Luke's father