As far as food safety goes, you already put a lot of trust in just buying chicken meat in a store, you know nothing about where they come from, what they eat, how many vaccines and hormones they are injected with, how they are killed or how long they are dead before they are processed or what condtions they are transported in. Most of us just try not to think about it and the FDA does nothing until there is a problem - recalls are weeks and months out and is usually a guessing game. So if people want to eat pigeons from a food truck, have at it but leave our cats and dogs alone.