This week, in "George Washington's Socks", by Elvira Woodruff: 

For their graduation pranks, the Scouts of Alpha Centauri Troupe travel back in time to steal George Washington's dentures — but discover the Founding Father has a full set of pearly-whites and, undeterred, become part of history itself.

K corrects Khaki's time-travel grammar. Khaki has had it up to here with these bears.

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