You shouldn't dump food on others.
Sally has been spreading nasty rumors about Becca in the cafeteria at lunch time.
Becca wants to express her dissatisfaction to Sally.
Becca walks over to Sally and calls her out for spreading rumors.
Becca walks over to Sally and dumps a plate of food onto Sally's head.
Becca has a chance to express her feelings to Sally and the two can try to resolve the situation peacefully.
Sally gets very dirty and is potentially burnt by the food, and Becca might get in trouble.