(Strip Number 1279, Original Publication Date, 19 April 1988)
Panel 1: As Lizzie plays in the mud, Mike asks her what she's doin'; she says that she's makin'mud cookies.
Panel 2: He asks her what kind she's making and she tells him "peanut butter surprise."
Panel 3: When she offers him one, he says "Sure!" before asking what the surprise is.
Panel 4: Mike baffles me when he drops the cookie I really hope he wasn't actually going to eat when she tells him that the surprise is that they've got bugs in them.
Summary: Given that Mike is just about to become 'old' enough to have romances, it seems baffling that he has to be the focus of a dumb little boy strip. The only explanation I can find is that Lynn stole an idea that appealed to the nasty little girl in her and simply had to use it.