Scandanavians are quite accustomed to the idea of wild camping, it is a pastime for them.
I have never had a problem, when i have pitched up behind boathouses on the fjords, during bad weather, you may get a visit from a local, wondering what you are doing, but a smile and a polite " Do you mind if i stay here please, i will behave" has always turned out fine.
When camped local to some houses, A request is unlikely to be refused.
I can't remember the exact law, but you aren't allowed to camp within 100m (i think) of occupied houses in Norway, but apart from that, wherever you park your bike is home.
In Germany, I recce a site during daylight, , visit the local hostelry, use the facilities, and return after dusk, keeping light to a minimum, and have not had much bother. I have never been asked to move on. Mainly because I keep my head down, and don't light fires.
In the Czech republic, 2 border guards with submachine guns, walked a mile into the forest to check me out (no pun intended), they were fine after inspecting my papers. There main concern was about my intentions, That I didn't burn their forest down, and that I didn't freeze to death.
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