You shouldn't sneak food into the theater because it's wrong.
Kevin wants to go see a movie with his friend tonight.
Kevin would like to enjoy some snacks during the movie.
Kevin buys snacks at the concession stand at the movies.
Kevin hides snacks he bought from the store in his bag and brings them into the theater.
Kevin's friend is happy that Kevin bought snacks for them to enjoy.
Kevin's friend thinks he is cheap for sneaking in snacks.