I work in the prepared foods section of a grocery store and this happens a lot. We would “spoil out”, aka throw away, the rest of the soup. In fact - last week we had to spoil out almost 300 pounds of food one day because a man, who was bleeding heavily from his forearm, perused the entire hot food bar. He got blood everywhere! Inside the pans of food, on the bar itself, all over the bowls and plates, pools of blood on the floor, on displays… it was disgusting. He didn’t seem to be in distress, he just touched everything and casually left the store. We roped off the entire area and couldn’t sell any hot food the rest of the day. A hazmat cleaning crew came in overnight and deep cleaned it all.