You see, approximately 13 years ago, Francesca had just begun a relationship with a Swiss man who lived in the Alps. Upon moving in with him, she made a strange discovery in the bathroom: a section of dental floss draped on the mirror. When she asked him about her finding, he confessed his economizing habit of reusing dental floss at least two or three times.
She is no longer dating the man. Apparently, he was otherwise pretty normal.