As per a study carried out, menu cards in hotels are found to have more bacteria than toilet seat covers. Earlier, we came to know about such filthy things like, key boards of computers, cell phone, etc having more harmful bacteria. Now, menu cards too joined the list. Full article may be read here.
http://timesofindia.indiatimes.com/city/hyderabad/menu-cards-are-100-times-dirtier-than-toilet-covers/articleshow/56883531.cms