Bryan Cranston Bryan Cranston

Where did Walt walk off to?

Walt (Bryan Cranston) made it out of Jesse's house after their comically brutal fight last week, but he's MIA on Sunday's Breaking Bad (10/9c, AMC) on a rather important day — Jr.'s 16th birthday.

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"Walt, if you're there, please pick up," Skyler ( Anna Gunn) says, leaving a message on his answering machine — which is next to bloody tissues and his broken glasses. "OK, well, I really wanted to do this together, but I can hear him getting up and it's not like I can keep him from seeing the thing, so I'm gonna have to go ahead without you.""The thing" is a car that Skyler finally agreed to buy for Jr. (RJ Mitte), and let's just say it's not the Dodge Charger Walt got for him and Skyler asked him to return a few weeks ago.Watch the clip: