An interesting tidbit - I just did a little googling to see if my Kirkland Costco dog bikkies were safe. (so far so good) In the process I found out that the bad wheat gluten was "food grade" (suitable for people food) not "feed grade" (not good enough for people, but ok for animals)

Sooooo... that stuff could've been put into people food. Watch what you eat, ladies and gentlemen.