•Private necessity: incomplete privilege •Trespass is excused (morally) •∆ still liable for damage caused by trespass •No punitive damages •Possessor’s privilege to interfere limited
in writ of trespass •Trespass against person / personal interests (property) •Formal conceit of vi et armis •Negligence: rooted in writ of trespass on the case •Trespass against other stuff •“Honest” alternative to force & arms