You should not lose your temper in public.
James had been waiting in a very long WalMart line for thirty minutes when the clerk open a new checkout for the people behind him.
James wants to express the unfairness of the situation.
James tells the cashier he's been waiting the longest, and he won't take long to check out.
James raises his voice and throws his items at the cashier as he decries the unfairness of not being first in the new line.
The cashier, who's not paid nearly enough to care, lets James be first in the new line.
James is asked to leave the store without being allowed to purchase any of his items.