...at the Denny's in the first episode of Season 5.
I think they foreshadowed it with the "say hello to my little friend" scene from Scarface that Walt and Walt, Junior were watching.
They had a scene from "The Cain Mutiny" in the episode last week. I'm sure that wasn't an accident either.
I was wondering about that too- at the beginning he did the ‘birthday bacon’ thing saying his age was 52....
Then, later, in either the same episode or another one, they had his wife doing the bacon thing saying he was 51... so was that a foreshadowing of something coming up on his NEXT birthday? (plus his hair was grown back)
They have had some great foreshadowing in some of these episodes and some confusing, not so great ones