In Ferguson MO, the protest agitators had warned the citizens to observe the 5 second rule:  Don’t eat anything that’s been dropped and stays on the ground for more than 5 seconds.  Since much of the produce grew in or on the ground, and other veggies may have been on the ground while harvesting, the veggie stall owner escaped the wrath of the protesters . . . there wasn’t much of a building to burn anyway, and how do you get lettuce to burn?