As someone who's grown up with crooked teeth, I end up noticing how straight/crooked other people's teeth are, and Bob's/Terry's have always been endearing to me. He's got such a darling grin.

So, yeah, Harry would love that about him, because it's Bob, and Bob is made of awesome. ;)

As for Ebenezar picking up on it, who knows?

Glad that the series has continued to entertain. :D