Are you sure that is real? Burger King did a commercial where it was a parody of people who were freaking out over not getting their burgers, and it was supposed to be "real" encounters
If it is real though, I am not suprised. I was in the food service industry for 10 years and have seen people do very irrational things over food. Take for example the guy who got escorted out by cops from one restaurant I worked at in Florida......he wasn't happy with his crab legs.