MicrobeWorld

Lab tests conducted on two pairs of flip flops that were worn for four days revealed Staphylococcus aureus contamination in the rubber. If the bacteria made its way into your foot via a cut, it could enter the bloodstream and cause some serious problems.

"It can make you pretty sick if it got into a wound and into your blood, where it could attack any of your internal organs," says Dennis Kinney, Ph.D., the manager of the microbiology lab at EMSL Analytical. "If you didn't treat it with antibiotics, you could die from it."