In practice, that &quot;reasonable force&quot; judgement call and the often demonstrated lack prosecutoral good will results in atrocities like this one, which was merely the first I found with a quick Google search: <a href="http:&#x2F;&#x2F;www.telegraph.co.uk&#x2F;news&#x2F;uknews&#x2F;1461346&#x2F;Five-years-in-prison-for-acting-in-self-defence.html" rel="nofollow">http:&#x2F;&#x2F;www.telegraph.co.uk&#x2F;news&#x2F;uknews&#x2F;1461346&#x2F;Five-years-in...</a><p>It can most certainly come up in home invasions, another article by the BBC mentioned about 11 cases in the recent past.