Travel is one of the most stressful aspects of everyday life, but displays of anger and violence can make it much worse. As aeroplane passengers are crammed into ever smaller spaces, air rage seems to be on the rise. Both on the ground and in the air, arguments can erupt into dangerous brawls.

A focus on fights that take place in public restaurants and fast-food joints. This is where many people end up after a night of drinking and carousing, and so it's not surprising that people often end up squaring up to one another amidst the burgers and kebabs.