“The encroachments committed by these persons are involuntary acts in the sense that those acts are compelled by inevitable circumstances and are not guided by choice. Trespass is a tort. But, even the Law of Torts requires that though a trespasser may be evicted forcibly, the force used must be no greater than what is reasonable and appropriate to the occasion and, what is even more important, the trespasser should be asked and given a reasonable opportunity to depart before force is used to expel him....Besides, under the Law of Torts, necessity is a plausible defence, which enables a person to escape liability on the ground that the acts complained of are necessary to prevent greater damage, inter alia, to himself,” said the judgement.