Of course she didn't bit his head off: she and his father have probably spent years teaching him to tell women that they are dressed and behaving inappropriately, and she's gotten exactly what she was looking for.

That she can't see a space between "let my son tell me to change my clothes" and "bite his head off for being a pervert" is indicative, here. Where's "honey, it's just a shirt. Go back to your homework"?