December 13, 1952: Lucy offhandedly remarks

I could remark something about her incredibly Lucy rage, but Charlie Brown's already done this in a previous strip. Lucy has too.

February 8, 1952: Beware the Wrath of the Prodigy

Can't really blame Schroeder for getting angry over this one!

Two things. First, Peanuts characters seemed to mellow out a lot over time. Even the mighty Lucy rarely seemed to wear an expression of this ferocity. Second, the rules concerning the depictions of adults and their communications was much less in force here. In many later strips, you wouldn't have seen a word balloon over the radio, and the joke probably would have had to be reworked into a conversation between two of the kids.

November 10, 1951: The claws come out

Another unexplained burst of rage from Patty and Violet, who in later strips would become almost defined by their disdain for Charlie Brown. When I was a kid reading 50s and 60s Peanuts strips in compilations, I thought the characters existed mostly to hate him.

This one implies that the two characters were reacting to something distasteful Charlie Brown did. Is it possible that the characters were always considered to be reacting to something CB said, offscreen, but in later strips the setup was just left out to save space?