Salt and pepper shakers and soap dispensers are rarely cleaned, allowing bacteria to spread. A study found that 69.7% of lemon slices carried bacteria like E. coli. Buffets are a breeding ground for bacteria growth due to food being kept at warm temperatures. Restaurant tables and seats are not properly sanitized after each use, allowing germs and bacteria to spread. Menus can harbor bacteria that cause infections. Bathroom door handles are rarely cleaned despite 1 in 5 people not washing hands after use. Ketchup bottles are refilled without adequate cleaning, and glass rims can harbor germs from waiter fingers inside them.