The amounts of capsaicin I used to put in my food would function as a laxative for a vast majority of people. And had someone at that point stolen my food, I could've just eaten it and said "I like it spicy" and the thief would have zero recourse.

capsaicin in large doses can cause heart attacks. which is why that one chip challenge thing didn’t last long, a kid died.

There is a small percentage of the population that would die if exposed to that much capacasin, however I assume that most of us do our best not to be exposed to pepper spray, or "tainted food." This does make it so we don't generally steal food, because there's a high probability that we will be allergic to the stuff.