He Thought Your Dental Floss Was Fishing Line
Eyes may be the windows to a person's soul, but teeth are a pretty good indicator of where his head is. If he doesn't take good care of his teeth, he's probably pretty cavalier about his health in general. I think this should be part of any responsible first-date diagnostic: close you eyes for a moment and imagine convincing this person to get a colonoscopy. Romantic? No. Important, if you want to connect with someone who is going to live a long, healthy life and encourage you to do the same? Yes.