... That cockroaches and chocolates have a relationship?
Yes! In every single bar, or lump of chocolate, there are cockroach body parts in them!!!!!!
According to the FDA guidelines, an average of EIGHT insect parts found in a chocolate bar is deemed SAFE. YUM-YUM! (Don't believe me? Click on LINK)
Therefore, there is a possibility that people are not reacting to the chocolates but to the roaches that are in them. Some people have migraine, cramps, itching or hives after consuming chocolate. It could be the roaches body parts that could be causing those reactions. Cockroaches can cause asthma too.
Click on LINK to read more about chocolate and cockroaches.