Here's a question and a few possible answers: 

Q: What can happen to you when eating hamburger from someone that you do not know that does not happen when you usually eat a hamburger?
Possible A: allergic reaction, gain weight, have fun, heartburn, food poisoning

Why is "food poisoning" an answer aligned with human common sense? 


food poisoning. because the hamburger may have been purposely placed for someone to be poisoned