To me, this is one of the most black and white questions I've seen here. This woman was astoundingly rude, and not just because of the chance Roe's kid might have been non-verbal. The other issue is that a kid who thinks and deliberates before opening his mouth should be *encouraged* to do so. Why is this a bad trait?
Of course, the evil side of me

could offer up:
Terrorist Faux Tour Guide: "Do you speak"?
Protective Mama Bear: "Do you think"?
Ugh. People are so strange.
And Roe, I wouldn't read too much into that response. It's the day before Thanksgiving, and the human acknowledging it may not even have gotten it into the proper hands yet.