Leaving raw chicken uncovered for a day
Food kept at refrigeration temperatures is relatively safe.  Any potential pathogens can not jump or fly about without something to propel them. Dripping can potentially contaminate. Cooking can render many things safe (if initially stored properly).  Keeping meats in closed containers is more sanitary (and respectful of others). However, to suggest that refrigerated unwrapped chicken, in a container, is "life threatening" sounds a bit extreme to me.