Video embedded below.
Makes sense to me, would you break into a house if you knew the adults inside were armed with machine guns and knew how to use them?
Related interesting article;
"Guns are deeply rooted within Swiss culture - but the gun crime rate is so low that statistics are not even kept.
The country has a population of six million, but there are estimated to be at least two million publicly-owned firearms, including about 600,000 automatic rifles and 500,000 pistols."