McDonald v. United States, 335 U.S. 451, 460-61 (1948) (Justice Jackson, concurring):
I am the less reluctant to reach this conclusion because the method of enforcing the law exemplified by this search is one which not only violates legal rights of defendant but is certain to involve the police in grave troubles if continued. That it did not do so on this occasion was due to luck more than to foresight. Many homeowners in this crime-beset city doubtless are armed. When a woman sees a strange man, in plain clothes, prying up her bedroom window and climbing in, her natural impulse would be to shoot. A plea of justifiable homicide might result awkwardly for enforcement officers. But an officer seeing a gun being drawn on him might shoot first. Under the circumstances of this case, I should not want the task of convincing a jury that it was not murder. I have no reluctance in condemning as unconstitutional a method of law enforcement so reckless and so fraught with danger and discredit to the law enforcement agencies themselves.