"No Soldier shall, in time of peace be quartered in any house, without the consent of the Owner, nor in time of war, but in a manner to be prescribed by law."
This amendment does not really make sense to me at this day in age. In fact it is almost comedic. Watch this video and I think you will agree...
The third amendment rarely recieves any action, here is an example of when it was examined in recent years...
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Ratified in 1791, the Third Amendment to the U.S. Constitution sets forth two basic requirements. During times of peace, the military may not house its troops in private residences without the consent of the owners. During times of war, the military may not house its troops in private residences except in accordance with established legal procedure. By placing these limitations on the private quartering of combatants, the Third Amendment subordinates military authority to civilian control and safeguards against abuses that can be perpetrated by standing armies and professional soldiers.
The Third Amendment traces its roots to English Law. In 1689, the English Bill of Rights prohibited the maintenance of a standing army in time of peace without the consent of Parliament. Less than a century later Parliament passed the Quartering Acts of 1765 and 1774, which authorized British troops to take shelter in colonial homes by military fiat (order). During the American Revolution, British Red Coats frequently relied on this authorization, making themselves unwelcome guests at private residences throughout the colonies. By 1776 the Declaration of Independence was assailing the king of England for quartering "large bodies of troops among us" and keeping "standing armies without the consent of our legislature."
Against this backdrop, a number of colonies enacted laws prohibiting the nonconsensual quartering of soldiers. The Delaware Declaration of Rights of 1776, for example, provided that "no soldier ought to be quartered in any house in time of peace without the consent of the owner, and in time of war in such a manner only as the legislature shall direct." Similar expressions also appeared in the Maryland Declaration of Rights of 1776, the Massachusetts Declaration of Rights of 1780, and the New Hampshire Bill of Rights of 1784. Originally drafted by James Madison in 1789, the Third Amendment embodies the spirit and intent of its colonial antecedents.
Primarily because the United States has not been regularly confronted by standing armies during its history, the Third Amendment has produced little litigation. The Supreme Court has never had occasion to decide a case based solely on the Third Amendment, though the Court has cited its protections against the quartering of soldiers as a basis for the constitutional right to privacy (griswold v. connecticut, 381 U.S. 479, 85 S. Ct. 1678, 14 L. Ed. 2d 510 ). In lower federal courts, Third Amendment claims typically have been rejected without much discussion.
However, in 1982, the U.S. Court of Appeals for the Second Circuit issued the seminal interpretation of the Third Amendment in Engblom v. Carey, 677 F.2d 957 (1982). Engblom raised the issue of whether the state of New York had violated the Third Amendment by housing members of the National Guard at the residences of two correctional officers who were living in a dormitory on the grounds of a state penitentiary. The governor had activated the guard to quell disorder at the penitentiary during a protracted labor strike.
Although the Second Circuit Court did not decide whether the Third Amendment had been violated, it made three other important rulings. First, the court ruled that under the due process clause of the Fourteenth Amendment, the Third Amendment applies to action taken by the state governments no less than it applies to actions by the federal government. Second, the court ruled that the two correctional officers were "owners" of their residences for the purposes of the Third Amendment, even though they were renting their dormitory room from the state of New York. Any person who lawfully possesses or controls a particular dwelling, the court said, enjoys a reasonable expectation of privacy in that dwelling that precludes the nonconsensual quartering of soldiers. Third, the court ruled that members of the National Guard are "soldiers" governed by the strictures of the Third Amendment.
I think the 3rd amendment is maybe a bit outdated since our military is way more advanced than it was at the time the constitution was written. I look at it more as a piece of Americas history than anything.