(Original Publication Date, 17 July 1991)
Panel 1: Some time after Mike is seated, we find him grimacing in rage because his headphones don't block out the loud yowls of the baby I've named Charlotte. Yet again, Lynn has no real idea that deciding that these people should be black makes Mike look vaguely racist because he'd be equally pissed off if they were white.
Panel 2: As her mother Emily tries feeding her and her older sister Anne looks on at her with concern, Mike scowls because he is too cool to be around children.
Panel 3: As Anne tries to calm Charlotte down by showing her a toy, Mike's scowl of anger looks a lot like Emily's frown of despair; he then thought-bubbles that he can't stand this any longer, he doesn't care what anyone thinks and he's going to something drastic.
Panel 4: That 'something' is to calm Charlotte down by making a funny face and going "BBBLLBUBLBLUBRRRURRRRR!!!!" at her.
Summary: Given that Elly has made helpful behaviour into a punishment, it's no surprise that Mike thinks that this is a desperation measure instead of a default.