"Dirty" Books

I was at the library today, and saw somthing...well...you be the judge. The ladies at the check out line thing were wearing clear latex-y gloves. I am quite confuzed. Are they not touching the same books and vidoes that I am?? Are the book so unsanitary that they need these gloves? I understand that these book do get around, but can't they just wash their hands? It makes you feel a little uneasy doesn't it? Why do I not get gloves?? there should be a big box of gloves at the door of the library that says "Take one, we're unsanitary in here" Or "watch out for bacteria" or somthing. I think that latex would become a more developed industry as a result... latex gloves indeed.