One way would be to create an array of booleans, one for each line of the original method, and add code that sets the appropriate flag as each line is executed.

One way newcomers can influence groups is by displaying loyalty, toeing the line and by creating psychological distance from previous group affiliations.

Along one side a scruffy fence lent drunkenly one way then the other, while a brutally straight line of six-foot high boards marked the other side of the territory.