That there is a possibility of a food product in this meal. There are probably other flavors that contain that product. They must provide you with this "May contain" label so those who have allergic reactions can watch out
The phrase "may contain" on a food label indicates that the food could have been cross contaminated during its production.
Basically, when the food product was being made, there is a possibility it could have come into contact with a potential allergen through equipment or from being in the same facility.
It is put on the label so those with allergies can prevent reactions.
A.Showing Aggression because if u show arrgrisiveness then you will/would end up starting a fight which is a negative way of dealing with it. Hope it helps mate