Your shoes may collect disenfectant. I went to a local hospital (Medical Center) for outpatient lab work. That night both my cats got sick. My cats tend to rub their noses against my shoes. Cats are fortunate in that they will 'throw up' when exposed to poisons -- at least some of the time. Small children might play with Mommy's or Daddy's shoes. I know some places have gone overboard spraying with disenfectants on surfaces/floors. After going out, I try to take off my shoes as soon as I can, and place them in a cardboard box. Today, I washed...