Top seven filthy surfaces you might touch today

According to the study conducted in Atlanta, Chicago, Dallas, Los Angeles, Miami and Philadelphia, the following constitute the most filthy surfaces:

1. The gas pumps
2. handles on public mailboxes
3. escalator rails
4. ATM buttons 
5. parking meters and kiosks
6. crosswalk buttons 
7. and buttons on vending machines in shopping malls

I also think the computer keyboards are one of the dirty surfaces. What do you think?

http://news.yahoo.com/gas-pump-handles-top-study-filthy-surfaces-040616533.html