Keep in mind that the biblical Samson physically destroyed the building in which he was being contained, at the cost of his own life, when he entreated God to return his strength for a final act of vengeance after he was betrayed and had his hair cut.

Actually, his hair had regrown at that point- his captors thought that he was powerless because they had blinded him after Delilah delivered him to them, and apparently Delilah never told them the real secret to his strength.