After watching the final game of the Stanley Cup finals, Stephen, a New York Rangers fan, and Dave, a Los Angeles Kings fan, got into a heated argument. Stephen physically attacked Dave after Dave was celebrating the Kings victory. The police arrived and charged Stephen with a criminal offence. Stephen has consulted you and asked if Dave (who has a broken nose and has missed work for a week) can bring a tort action against him as well. Advise Stephen of what tort(s) he may have committed, and what defences he might have available.