I was paying a visit to Mr. Swiss. The window was open in his room on the second floor and suddently this creature entered. Apparently it is a so-called Stink Bug. We also have them now and again in my garden, but to be quite honest I have never noticed that they stink. It was an interruption until I eventually managed to guide it out of the window and I am sure it was happier outside finding something suitable to digest. I read that they originated in Asia and found they way to Switzerland. Apparently they found they way to Switzerland when the Chinese Garden was created in Zürich and various plants were imported from China. Now you find them in most European countries.