Slightly off topic but: My first trip to Germany as a civilian I went with an old hand who warned me about the inadvisability of getting upset with the Bundesgrenzschutz, the German border police, who man/woman both immigration and customs. They carry guns and handcuffs, wear green and beige uniforms and have no sense of humour at all and are nothing at all like immigration and customs in the UK.
I mention this just in case any of you regulars get so fed up with German security one day that you sound off to one of the Bundesgrenzschutz, better not!
