The average water fountain handle has more germs than a toilet seat… Now isn’t that refreshing.
And I wondered, “Why didn’t that last part have a question mark instead of a period?” But then it occurred to me that people often intend to say things like that in a way that is not actually inquisitive. They say it on a downward slope, as though it’s a conclusion and not something to be answered.
What I’m wondering is whether there’s a grammatical term or explanation for something like that. Would it be considered an interrogative or declarative sentence?
When people say things like that, they inflect downwards at the end of the sentence (another example is the Church Lady’s “Isn’t that special…”); they assume that, since it’s not inflecting up it shouldn’t get a question mark.