Then again, even if it's a pipe, the guy further on the left is definitely armed, so....
Besides which, the German units stationed in Denmark were not the Panzer Lehr, or 2 SS Panzer.
They were most definitely second- if not third-rate troops.
The German army referred to Denmark as the 'Whipped Cream Front'.
Nothing much happened compared to e.g. France or Russia. Most instances were civil disobedience and/or union strikes, that sort of thing.
As for the much-celebrated (at least in Denmark) resistance movement, there were maybe 2500-3000 organized resistance fighters, out of a population of 3.8M.
This is not to denigrate their efforts, but there's an argument to be made that Frikorps Danmark (Danish voluntary unit who fought under SS command) had a bigger impact on history than anything the resistance movement managed to do.